[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:10":3},{"id":4,"longid":5,"guid":6,"name":7,"shortcode_ima":8,"entrytype":9,"entrytype_text":10,"varietyof":11,"synid":11,"polytypeof":11,"groupid":12,"weighting":13,"nolocadd":14,"blacklisted":14,"mindat_formula":15,"mindat_formula_note":11,"ima_formula":15,"elements":16,"sigelements":19,"key_elements":20,"impurities":21,"cim":22,"ima_status":23,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":11,"discovery_year":26,"strunz10ed1":27,"strunz10ed2":28,"strunz10ed3":29,"strunz10ed4":30,"dana8ed1":27,"dana8ed2":31,"dana8ed3":32,"dana8ed4":32,"csystem":33,"cclass":34,"spacegroup":35,"spacegroupset":36,"a":37,"b":38,"c":39,"alpha":36,"beta":40,"gamma":36,"aerror":11,"berror":11,"cerror":11,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":41,"csmetamict":14,"commentcrystal":11,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":42,"tlform":11,"hmin":43,"hmax":44,"hardtype":45,"vhnmin":46,"vhnmax":47,"vhnerror":11,"vhng":48,"vhns":11,"commenthard":11,"dmeas":49,"dmeas2":50,"dcalc":51,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":52,"lustretype":52,"commentluster":11,"diapheny":53,"streak":54,"colour":55,"commentcolor":11,"colors":56,"streak_colors":59,"luminescence":60,"uv":61,"cleavage":11,"cleavagetype":62,"fracturetype":63,"tenacity":64,"commentbreak":11,"opticaltype":11,"opticalsign":11,"opticalalpha":36,"opticalalpha2":36,"opticalalphaerror":11,"opticalbeta":36,"opticalbeta2":36,"opticalbetaerror":11,"opticalgamma":36,"opticalgamma2":36,"opticalgammaerror":11,"opticalomega":36,"opticalomega2":36,"opticalomegaerror":11,"opticalepsilon":36,"opticalepsilon2":36,"opticalepsilonerror":11,"opticaln":36,"opticaln2":36,"opticalnerror":11,"optical2vcalc":36,"optical2vcalc2":36,"optical2vcalcerror":11,"optical2vmeasured":36,"optical2vmeasured2":36,"optical2vmeasurederror":11,"rimin":11,"rimax":11,"opticaldispersion":11,"opticalpleochroism":11,"opticalpleochorismdesc":11,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":65,"opticalanisotropism":66,"opticalbireflectance":11,"opticalextinction":11,"opticalr":67,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":11,"occurrence":11,"otheroccurrence":68,"type_specimen_store":11,"description_short":69,"aboutname":70,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":71,"reviewed_at":11,"variety_of":11,"varieties":72,"group_members":73,"associates":85,"confused_with":238,"type_localities":240,"occurrence_total":247,"citations":248,"images":328,"structures":699,"synonyms":706,"language_names":743,"wikidata_qid":893,"texts":894},10,"1:1:10:5","42460b0a-a0f4-4a29-8046-035a65bb60c0","Acanthite","Aca",0,"mineral",null,46605,25714,false,"Ag\u003Csub>2\u003C\u002Fsub>S",[17,18],"Ag","S",[17,18],[17],"Se","3.2.1",[24,25],"APPROVED","GRANDFATHERED","1855","2","B","A","35","4","1","Monoclinic",5,15,"0","4.229","6.931","7.862","99.61",4,"Typically found as pseudo-cubic and pseudo-octahedral crystals, paramorphic after argentite.  Also found as thorn-shaped monoclinic crystals, usually small to microscopic in size. Large primary crystals are uncommon, other than fine overgrowths and replacements of native silver; they are prismatic to long prismatic, elongated along [001], to 2.5 cm, may be tubular; also massive.",2,2.5,3,"21","25",50,"7.2","7.4","7.24","Metallic","Opaque","lead grey","lead grey, black",[57,58],"gray","black",[57],"None","Not fluorescent in UV","None Observed","Sub-Conchoidal","sectile","Anisotropic","Weak","(32.8) 400, (32.9) 420, (33.0) 440, (33.1) 460, (33.0) 480, (32.7) 500, (32.0) 520, (31.2) 540, (30.5) 560, (29.9) 580, (29.2) 600, (28.7) 620, (28.2) 640, (27.6) 660, (27.0) 680, (26.4) 700","A common silver species in moderately low-temperature hydrothermal sulphide veins, and in zones of secondary enrichment.  \r\n\r\nWidespread in silver deposits. Localities for fine primary and paramorphic crystals include Jáchymov (St Joachimsthal), Czech Republic [TL]; In Germany, at Freiberg, Schneeberg, Annaberg, and Marienberg, Saxony; and from St Andreasberg, Harz. In Mexico, large paramorphs from Arizpe, Sonora; In the Rayas and other mines at Guanajuato; And from many mines in Zacatecas, Chihuahua, etc; In the USA, at Butte, Silver Bow Co., Montana; Tonopah, Nye Co. and the Comstock Lode, Virginia City, Storey Co., Nevada; From various mines at Cobalt, Ontario, Canada; At Chañarcillo, south of Copiapó, Atacama, Chile.","Acanthite is the low-temperature modification of silver sulphide. \r\n\r\nAll natural silver sulphide specimens at room temperatures are acanthite. \r\nThe structure of Argentite, the high-temperature cubic (isometric) form cannot be quenched. At atmospheric...","Named in 1855 by Gustav Adolf Kenngott from the Greek άκανθα (\"akantha\") meaning \"thorn\", in allusion to the thorn-like crystal shape of his material. With the advent of instrumental analytical equipment, it was discovered that the mineral called \"argentite\" which had isometric crystal shapes has an atomic structure and chemistry identical to acanthite.","2026-03-12 17:19:04",[],[74,81],{"id":75,"name":76,"entrytype":9,"csystem":33,"ima_formula":77,"mindat_formula":77,"hmin":44,"hmax":44,"dmeas":78,"dcalc":79,"primary_image_id":80},59,"Aguilarite","Ag\u003Csub>4\u003C\u002Fsub>SeS","7.40","7.65",399,{"id":82,"name":83,"entrytype":9,"csystem":33,"ima_formula":84,"mindat_formula":84,"hmin":43,"hmax":43,"dmeas":36,"dcalc":36,"primary_image_id":11},937,"Cervelleite","Ag\u003Csub>4\u003C\u002Fsub>TeS",[86,87,96,103,111,119,127,134,142,150,157,164,171,177,185,192,199,207,212,219,226,232],{"id":75,"name":76,"entrytype":9,"csystem":33,"ima_formula":77,"mindat_formula":77,"hmin":44,"hmax":44,"dmeas":78,"dcalc":79,"primary_image_id":80},{"id":88,"name":89,"entrytype":9,"csystem":90,"ima_formula":91,"mindat_formula":91,"hmin":92,"hmax":41,"dmeas":93,"dcalc":94,"primary_image_id":95},89,"Alabandite","Isometric","MnS",3.5,"3.95","4.053",508,{"id":97,"name":98,"entrytype":9,"csystem":33,"ima_formula":99,"mindat_formula":99,"hmin":92,"hmax":41,"dmeas":100,"dcalc":101,"primary_image_id":102},299,"Argentopyrite","AgFe\u003Csub>2\u003C\u002Fsub>S\u003Csub>3\u003C\u002Fsub>","4.25","4.27",1832,{"id":104,"name":105,"entrytype":9,"csystem":106,"ima_formula":107,"mindat_formula":107,"hmin":44,"hmax":45,"dmeas":108,"dcalc":109,"primary_image_id":110},331,"Argyrodite","Orthorhombic","Ag\u003Csub>8\u003C\u002Fsub>GeS\u003Csub>6\u003C\u002Fsub>","6.29","6.32",1847,{"id":112,"name":113,"entrytype":9,"csystem":114,"ima_formula":115,"mindat_formula":116,"hmin":45,"hmax":45,"dmeas":36,"dcalc":117,"primary_image_id":118},817,"Benleonardite","Trigonal","Ag\u003Csub>15\u003C\u002Fsub>Cu(Sb,As)\u003Csub>2\u003C\u002Fsub>S\u003Csub>7\u003C\u002Fsub>Te\u003Csub>4\u003C\u002Fsub>","[Ag\u003Csub>6\u003C\u002Fsub>(Sb,As)\u003Csub>2\u003C\u002Fsub>S\u003Csub>6\u003C\u002Fsub>Te][Ag\u003Csub>9\u003C\u002Fsub>Cu(S,Te)\u003Csub>2\u003C\u002Fsub>Te\u003Csub>2\u003C\u002Fsub>]","7.76",3056,{"id":120,"name":121,"entrytype":9,"csystem":114,"ima_formula":122,"mindat_formula":123,"hmin":45,"hmax":45,"dmeas":124,"dcalc":125,"primary_image_id":126},859,"Calcite","Ca(CO\u003Csub>3\u003C\u002Fsub>)","CaCO\u003Csub>3\u003C\u002Fsub>","2.7102","2.711",4401,{"id":128,"name":129,"entrytype":9,"csystem":106,"ima_formula":130,"mindat_formula":130,"hmin":44,"hmax":44,"dmeas":131,"dcalc":132,"primary_image_id":133},882,"Canfieldite","Ag\u003Csub>8\u003C\u002Fsub>SnS\u003Csub>6\u003C\u002Fsub>","6.2","6.311",4541,{"id":135,"name":136,"entrytype":9,"csystem":137,"ima_formula":138,"mindat_formula":138,"hmin":92,"hmax":41,"dmeas":139,"dcalc":140,"primary_image_id":141},955,"Chalcopyrite","Tetragonal","CuFeS\u003Csub>2\u003C\u002Fsub>","4.1","4.18",29425,{"id":143,"name":144,"entrytype":9,"csystem":106,"ima_formula":145,"mindat_formula":146,"hmin":92,"hmax":41,"dmeas":147,"dcalc":148,"primary_image_id":149},1342,"Dyscrasite","Ag\u003Csub>3+x\u003C\u002Fsub>Sb\u003Csub>1-x\u003C\u002Fsub> (x ≈ 0.2)","Ag\u003Csub>3\u003C\u002Fsub>Sb","9.712","9.720",7549,{"id":151,"name":152,"entrytype":9,"csystem":33,"ima_formula":153,"mindat_formula":153,"hmin":44,"hmax":44,"dmeas":154,"dcalc":155,"primary_image_id":156},1606,"Freieslebenite","AgPbSbS\u003Csub>3\u003C\u002Fsub>","6.20","6.22",9400,{"id":158,"name":159,"entrytype":9,"csystem":90,"ima_formula":160,"mindat_formula":160,"hmin":44,"hmax":44,"dmeas":161,"dcalc":162,"primary_image_id":163},1641,"Galena","PbS","7.60","7.57",9582,{"id":165,"name":166,"entrytype":9,"csystem":137,"ima_formula":167,"mindat_formula":167,"hmin":43,"hmax":44,"dmeas":168,"dcalc":169,"primary_image_id":170},2069,"Jalpaite","Ag\u003Csub>3\u003C\u002Fsub>CuS\u003Csub>2\u003C\u002Fsub>","6.82","6.827",12494,{"id":172,"name":173,"entrytype":9,"csystem":90,"ima_formula":17,"mindat_formula":17,"hmin":44,"hmax":45,"dmeas":174,"dcalc":175,"primary_image_id":176},3664,"Native Silver","10.1","10.497",17318,{"id":178,"name":179,"entrytype":9,"csystem":33,"ima_formula":180,"mindat_formula":181,"hmin":44,"hmax":45,"dmeas":182,"dcalc":183,"primary_image_id":184},3256,"Polybasite","[Ag\u003Csub>9\u003C\u002Fsub>CuS\u003Csub>4\u003C\u002Fsub>][(Ag,Cu)\u003Csub>6\u003C\u002Fsub>(Sb,As)\u003Csub>2\u003C\u002Fsub>S\u003Csub>7\u003C\u002Fsub>]","[Ag\u003Csub>6\u003C\u002Fsub>Sb\u003Csub>2\u003C\u002Fsub>S\u003Csub>7\u003C\u002Fsub>][Ag\u003Csub>9\u003C\u002Fsub>CuS\u003Csub>4\u003C\u002Fsub>]","6.1","6.36",19736,{"id":186,"name":187,"entrytype":9,"csystem":114,"ima_formula":188,"mindat_formula":188,"hmin":43,"hmax":44,"dmeas":189,"dcalc":190,"primary_image_id":191},3294,"Proustite","Ag\u003Csub>3\u003C\u002Fsub>AsS\u003Csub>3\u003C\u002Fsub>","5.57","5.625",20041,{"id":193,"name":194,"entrytype":9,"csystem":114,"ima_formula":195,"mindat_formula":195,"hmin":44,"hmax":44,"dmeas":196,"dcalc":197,"primary_image_id":198},3313,"Pyrargyrite","Ag\u003Csub>3\u003C\u002Fsub>SbS\u003Csub>3\u003C\u002Fsub>","5.82","5.855",20231,{"id":200,"name":201,"entrytype":9,"csystem":114,"ima_formula":202,"mindat_formula":202,"hmin":203,"hmax":203,"dmeas":204,"dcalc":205,"primary_image_id":206},3337,"Quartz","SiO\u003Csub>2\u003C\u002Fsub>",7,"2.65","2.66",30579,{"id":208,"name":209,"entrytype":9,"csystem":106,"ima_formula":210,"mindat_formula":210,"hmin":44,"hmax":45,"dmeas":36,"dcalc":211,"primary_image_id":11},3612,"Selenostephanite","Ag\u003Csub>5\u003C\u002Fsub>SbSe\u003Csub>4\u003C\u002Fsub>","7.5",{"id":213,"name":214,"entrytype":9,"csystem":90,"ima_formula":215,"mindat_formula":215,"hmin":92,"hmax":41,"dmeas":216,"dcalc":217,"primary_image_id":218},3727,"Sphalerite","ZnS","3.9","4.096",66200,{"id":220,"name":221,"entrytype":9,"csystem":106,"ima_formula":222,"mindat_formula":222,"hmin":43,"hmax":44,"dmeas":223,"dcalc":224,"primary_image_id":225},3764,"Stephanite","Ag\u003Csub>5\u003C\u002Fsub>SbS\u003Csub>4\u003C\u002Fsub>","6.26","6.28",30746,{"id":227,"name":228,"entrytype":9,"csystem":114,"ima_formula":229,"mindat_formula":229,"hmin":43,"hmax":43,"dmeas":36,"dcalc":230,"primary_image_id":231},4127,"Uytenbogaardtite","Ag\u003Csub>3\u003C\u002Fsub>AuS\u003Csub>2\u003C\u002Fsub>","8.40",27176,{"id":233,"name":234,"entrytype":9,"csystem":33,"ima_formula":188,"mindat_formula":188,"hmin":43,"hmax":45,"dmeas":235,"dcalc":236,"primary_image_id":237},4330,"Xanthoconite","5.54","5.53",31002,[239],{"id":75,"name":76,"entrytype":9,"csystem":33,"ima_formula":77,"mindat_formula":77,"hmin":44,"hmax":44,"dmeas":78,"dcalc":79,"primary_image_id":80},[241],{"id":242,"txt":243,"latitude":244,"longitude":245,"country":246},777,"Jáchymov, Karlovy Vary District, Karlovy Vary Region, Czech Republic",50.3661111,12.9233333,"Czech Republic",3053,[249,253,258,261,265,269,274,278,283,287,292,296,301,305,309,313,318,323],{"id":250,"year":251,"html":252,"doi":11},18260357,1795,"Klaproth, M. H. (1795)  IX. Untersuchung der Silbererze, Silberglanzers . In \u003Ci>Beiträge zur chemischen Kenntniss der Mineralkörper\u003C\u002Fi> Vol. 1. Rottmann. p.158-160.",{"id":254,"year":255,"html":256,"doi":257},4461950,1855,"Kenngott, Adolf (1855) Ueber den Akanthit, eine neue Species in dem Geschlechte der Silber-Glanze. \u003Ci>Annalen der Physik und Chemie\u003C\u002Fi>, 171. 462-464 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1002\u002Fandp.18551710710'>doi:10.1002\u002Fandp.18551710710\u003C\u002Fa>","10.1002\u002Fandp.18551710710",{"id":259,"year":255,"html":260,"doi":11},16099307,"Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften (1855) IV, 447-468.",{"id":262,"year":263,"html":264,"doi":11},519507,1926,"Emmons, R. C., Stockwell, C. H:, Jones, R. H. B. (1926) Argentite and acanthite. \u003Ci>American Mineralogist\u003C\u002Fi>,  11 (12) 326-328 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM11\u002FAM11_326.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":266,"year":267,"html":268,"doi":11},1118651,1944,"Palache, Charles, Berman, Harry, Frondel, Clifford (1944) \u003Ci>The System of Mineralogy\u003C\u002Fi> (7th ed.) Vol. 1 - Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, New York.",{"id":270,"year":271,"html":272,"doi":273},232844,1955,"Suhr, Norman (1955) The Ag2S-Cu2S system. \u003Ci>Economic Geology\u003C\u002Fi>,  50 (3). 347-350 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2113\u002Fgsecongeo.50.3.347'>doi:10.2113\u002Fgsecongeo.50.3.347\u003C\u002Fa>","10.2113\u002Fgsecongeo.50.3.347",{"id":275,"year":276,"html":277,"doi":11},16099311,1957,"Frueh, A. J. (1957) The crystal structure, polymorphism and twinning of acanthite (Ag2S). Acta Crystallographica: 10: 764-764.",{"id":279,"year":280,"html":281,"doi":282},106115,1958,"Frueh, Alfred J. (1958) The Crystallography of Silver Sulfide, Ag₂S. \u003Ci>Zeitschrift für Kristallographie\u003C\u002Fi>,  110 (1-6). 136-144 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.1958.110.1-6.136'>doi:10.1524\u002Fzkri.1958.110.1-6.136\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fzk\u002Fvol110\u002FZK110_136.pdf?reftype=unknown' class='refpdflink'>\u003C\u002Fa>","10.1524\u002Fzkri.1958.110.1-6.136",{"id":284,"year":285,"html":286,"doi":11},16099313,1967,"Sadanaga, R. and Sueno, S. (1967) X-ray study on the alpha-beta transition of Ag2S Locality: Innai mine, Akita, Japan. Mineralogical Journal (Japan): 5: 124-148.",{"id":288,"year":289,"html":290,"doi":291},16596174,1969,"Ramdohr, Paul (1969) \u003Ci>The Ore Minerals and their Intergrowths\u003C\u002Fi>. Pergamon Press, Oxford. 1174pp. \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fc2013-0-10027-x'>doi:10.1016\u002Fc2013-0-10027-x\u003C\u002Fa>","10.1016\u002Fc2013-0-10027-x",{"id":293,"year":294,"html":295,"doi":11},16099315,1974,"Petruk, W., Owens, D. R., Stewart, J.M., and Murray, E.J. (1974) Observations on acanthite, aguilarite and naumannite. The Canadian Mineralogist: 12: 365-369.",{"id":297,"year":298,"html":299,"doi":300},577141,1980,"Cava, R.J., Reidinger, F., Wuensch, B.J. (1980) Single-crystal neutron diffraction study of the fast-ion conductor β-Ag2S between 186 and 325°C. \u003Ci>Journal of Solid State Chemistry\u003C\u002Fi>,  31. 69-80 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002F0022-4596(80)90009-2'>doi:10.1016\u002F0022-4596(80)90009-2\u003C\u002Fa>","10.1016\u002F0022-4596(80)90009-2",{"id":302,"year":303,"html":304,"doi":11},16099577,1993,"Pingitore, N.E., Ponce, B.F., Estrada, L., Eastman, M.P., Yuan, H.L., Porter, L.C., Estrada, G. (1993) Calorimetric analysis of the system Ag2S-Ag2Se between 25 and 250°C. Journal of Material Research: 8: 3126-3130.",{"id":306,"year":307,"html":308,"doi":11},1118654,1997,"Gaines, Richard V.; Skinner, H. Catherine W.; Foord, Eugene E.; Mason, Brian; Rosenzweig, Abraham; King, Vandall T. (1997) \u003Ci>Dana's New Mineralogy\u003C\u002Fi> (8th ed.). Wiley-Interscience. 1872 pp.",{"id":310,"year":311,"html":312,"doi":11},16962537,2005,"(2005) Acanthite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Facanthite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":314,"year":315,"html":316,"doi":317},13256018,2011,"(2011) In situ high-temperature X-ray diffraction characterization of silver sulfide, Ag2S. \u003Ci>Powder Diffraction\u003C\u002Fi>, 26 (2) 114-118 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1154\u002F1.3583564'>doi:10.1154\u002F1.3583564\u003C\u002Fa>","10.1154\u002F1.3583564",{"id":319,"year":320,"html":321,"doi":322},12681672,2014,"Pal’yanova, G.A., Chudnenko, K.V., Zhuravkova, T.V. (2014) Thermodynamic properties of solid solutions in the system Ag2S–Ag2Se. \u003Ci>Thermochimica Acta\u003C\u002Fi>, 575. 90-96 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fj.tca.2013.10.018'>doi:10.1016\u002Fj.tca.2013.10.018\u003C\u002Fa>","10.1016\u002Fj.tca.2013.10.018",{"id":324,"year":325,"html":326,"doi":327},17157479,2019,"Sadovnikov, S. I., Gusev, A. I. (2019) Argentite-Acanthite Transformation in Silver Sulfide as a Disorder-Order Transition. \u003Ci>JETP Letters\u003C\u002Fi>,  109 (9) 584-588 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1134\u002Fs0021364019090145'>doi:10.1134\u002Fs0021364019090145\u003C\u002Fa>","10.1134\u002Fs0021364019090145",[329,339,347,354,360,365,371,378,387,392,399,406,413,418,424,433,440,447,453,459,466,472,477,484,491,497,504,513,518,524,531,537,544,550,556,563,573,580,587,593,598,605,612,618,624,632,640,646,651,655,661,666,672,679,686,692],{"id":330,"source_url":331,"license_code":332,"credit_html":333,"title":334,"description":335,"author":336,"original_width":337,"original_height":338},66,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10452100","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10452100\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-ma16a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Acanthite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Imiter Mine, Boumalne-Dadès, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FOuarzazate_Province\" class=\"extiw\" title=\"en:Ouarzazate Province\">Ouarzazate Province\u003C\u002Fa>, Souss-Massa-Draâ Region, Morocco (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2394.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 3.9 x 3.5 x 1.5 cm\n\u003Cdl>\u003Cdt>Acanthite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Intergrown, octahedral crystals acanthite . Up to .7 cm across\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",600,496,{"id":340,"source_url":341,"license_code":332,"credit_html":342,"title":343,"description":344,"author":336,"original_width":345,"original_height":346},31070,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10430205","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10430205\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-d70c.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Acanthite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Argentite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFreiberg\" class=\"extiw\" title=\"en:Freiberg\">Freiberg\u003C\u002Fa>, Freiberg District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FErzgebirge\" class=\"extiw\" title=\"en:Erzgebirge\">Erzgebirge\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSaxony\" class=\"extiw\" title=\"en:Saxony\">Saxony\u003C\u002Fa>, Germany (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-13884.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: thumbnail, 2.2 x 2 x .8 cm\n\u003Cdl>\u003Cdt>Acanthite after Argentite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>A superb pair of Acanthite crystals from one of the worlds great Silver localities. For size, luster, and sharpness, these are way above the norm, making this a truly outstanding specimen. 3-dimensional! 2.2 x 2 x .8 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",345,400,{"id":348,"source_url":349,"license_code":332,"credit_html":350,"title":351,"description":352,"author":336,"original_width":346,"original_height":353},67,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10454596","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10454596\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-oldeuro-02c.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Acanthite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAnnaberg-Buchholz\" class=\"extiw\" title=\"en:Annaberg-Buchholz\">Annaberg-Buchholz\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FErzgebirge\" class=\"extiw\" title=\"en:Erzgebirge\">Erzgebirge\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSaxony\" class=\"extiw\" title=\"en:Saxony\">Saxony\u003C\u002Fa>, Germany (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-1880.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: small cabinet, 6.6 x 3.9 x 2.1 cm\n\u003Cdl>\u003Cdt>Acanthite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>A superb, rare locality specimen with a valid old label clearly showing this is from ANNABERG and not the more commonly seen Freiberg district. Sharp crystals of calcite decorate and accent this solid cluster of 100% crystallized acanthite, which I have not cleaned to enhance its brightness and so it remains au naturale. Probably from the early to mid 1800s, this is a very rare locality specimen.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",322,{"id":355,"source_url":356,"license_code":357,"credit_html":358,"title":7,"description":11,"author":11,"original_width":359,"original_height":242},28989,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F161886","CC BY-SA 4.0","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F161886\" rel=\"noopener\">Department of Geology, TalTech\u003C\u002Fa> via Europeana",1000,{"id":361,"source_url":362,"license_code":357,"credit_html":363,"title":7,"description":11,"author":11,"original_width":364,"original_height":359},28990,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F128278","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F128278\" rel=\"noopener\">University of Tartu, Natural History Museum\u003C\u002Fa> via Europeana",971,{"id":366,"source_url":367,"license_code":332,"credit_html":368,"title":369,"description":344,"author":336,"original_width":346,"original_height":370},31071,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10430207","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10430207\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-d70b.jpg",340,{"id":372,"source_url":373,"license_code":332,"credit_html":374,"title":375,"description":376,"author":336,"original_width":377,"original_height":346},31072,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443939","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443939\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-acn-01d.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Acanthite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Argentite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Imiter Mine, Boumalne-Dadès, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FOuarzazate_Province\" class=\"extiw\" title=\"en:Ouarzazate Province\">Ouarzazate Province\u003C\u002Fa>, Souss-Massa-Draâ Region, Morocco (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2394.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: thumbnail, 2.8 x 1.8 x 1.4 cm\n\u003Cdl>\u003Cdt>Acanthite ps. Argentite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Showing off the sharp octahedral form of the original argentite, this acanthite pseudomorph has fine form and super metallic luster. The crystal is as sharp as a spear head, which it greatly resembles. Complete all around, lustrous, and Very showy!\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",276,{"id":379,"source_url":380,"license_code":357,"credit_html":381,"title":382,"description":383,"author":384,"original_width":385,"original_height":386},70,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=129795585","Raimond Spekking, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=129795585\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Silberglanz, Ag2S, Schemnitz, Ungarn-8976.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAcanthite\" class=\"extiw\" title=\"en:Acanthite\">Acanthite\u003C\u002Fa> (also \u003Ci>Silberglanz\u003C\u002Fi>, Ag\u003Csub>2\u003C\u002Fsub>S). Weight: 77 g – Place of discovery: Banská Štiavnica (german: \u003Ci>Schemnitz\u003C\u002Fi>), Slovakia (formerly Hungary)","Raimond Spekking",5605,4204,{"id":388,"source_url":389,"license_code":357,"credit_html":390,"title":7,"description":11,"author":11,"original_width":359,"original_height":391},28992,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F128270","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F128270\" rel=\"noopener\">University of Tartu, Natural History Museum\u003C\u002Fa> via Europeana",705,{"id":393,"source_url":394,"license_code":332,"credit_html":395,"title":396,"description":376,"author":336,"original_width":397,"original_height":398},31073,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443947","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443947\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-acn-01b.jpg",531,800,{"id":400,"source_url":401,"license_code":357,"credit_html":402,"title":403,"description":383,"author":384,"original_width":404,"original_height":405},71,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=129795588","Raimond Spekking, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=129795588\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Silberglanz, Ag2S, Schemnitz, Ungarn-8977.jpg",6677,4451,{"id":407,"source_url":408,"license_code":332,"credit_html":409,"title":410,"description":411,"author":336,"original_width":412,"original_height":346},31074,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443949","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443949\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-acn-02b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Acanthite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Argentite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Imiter Mine, Boumalne-Dadès, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FOuarzazate_Province\" class=\"extiw\" title=\"en:Ouarzazate Province\">Ouarzazate Province\u003C\u002Fa>, Souss-Massa-Draâ Region, Morocco (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2394.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 4.6 x 3.3 x 3.1 cm\n\u003Cdl>\u003Cdt>Acanthite ps. Argentite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>A complete floater clustered around a pagoda-like 3-cm-tall central crystal, with no visible point of attachment, this specimen of acanthite after argentite is just incredible. It has LUSTRE, for starters. Most of the octahedral, splendent, dark gray crystals, to 1.25 cm in length, have grown on top of each other, making the specimen look very much like a cityscape of Chinese pagodas or of South African hausmannite which you could easily mistake this for (though it would be about the best imagineable hausmannite quality!). Aesthetic and mesmerizing full miniature specimen, from this new find.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",297,{"id":414,"source_url":415,"license_code":357,"credit_html":416,"title":417,"description":383,"author":384,"original_width":404,"original_height":405},72,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=129795591","Raimond Spekking, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=129795591\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Silberglanz, Ag2S, Schemnitz, Ungarn-8978.jpg",{"id":419,"source_url":420,"license_code":332,"credit_html":421,"title":422,"description":411,"author":336,"original_width":346,"original_height":423},31075,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443950","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443950\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-acn-02c.jpg",365,{"id":425,"source_url":426,"license_code":357,"credit_html":427,"title":428,"description":429,"author":430,"original_width":431,"original_height":432},73,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=131536928","Kaethe17, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=131536928\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Akanthit.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAcanthite\" class=\"extiw\" title=\"en:Acanthite\">Acanthite\u003C\u002Fa> (Weight: 163 g) – Locality: Jáchymov, Czech Republic","Kaethe17",4973,3316,{"id":434,"source_url":435,"license_code":332,"credit_html":436,"title":437,"description":438,"author":336,"original_width":346,"original_height":439},31076,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443961","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443961\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-acn-03f.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Acanthite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Argentite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Imiter Mine, Boumalne-Dadès, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FOuarzazate_Province\" class=\"extiw\" title=\"en:Ouarzazate Province\">Ouarzazate Province\u003C\u002Fa>, Souss-Massa-Draâ Region, Morocco (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2394.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: small cabinet, 8.3 x 5.2 x 3.4 cm\n\u003Cdl>\u003Cdt>Acanthite ps. Argentite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This is a larger version of the previous specimen and even more spectacular. This new find has lustre - bright sparkling lustre that is hard to convey in photos and quite another world from the appearance of previous finds here. It is a complete floater with no visible point of attachment. The acanthite after argentite crystals are octahedral in form, elegantly elongated to over 3 cm in length. They have splendent luster and a dark jet black color, with individual crystals reaching 3 cm in length. Most of the crystals have grown on top of each other and the overall appearance is that of a city of Chinese pagodas or even South African hausmannite specimens. Absolutely a world class example of acanthite, and frankly inexpensive compared to what similar-sized examples of the species in this relative quality level might cost from old Germany, classic old Mexican, and the new China finds (all in the multi-five-figure range)! In person, i will guarantee this to be as mesmerizing as my hyperbole here claims.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",272,{"id":441,"source_url":442,"license_code":332,"credit_html":443,"title":444,"description":445,"author":336,"original_width":346,"original_height":446},31077,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443963","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443963\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-acn-04c.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Acanthite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Argentite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Imiter Mine, Boumalne-Dadès, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FOuarzazate_Province\" class=\"extiw\" title=\"en:Ouarzazate Province\">Ouarzazate Province\u003C\u002Fa>, Souss-Massa-Draâ Region, Morocco (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2394.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: small cabinet, 6.0 x 3.8 x 2.4 cm\n\u003Cdl>\u003Cdt>Acanthite ps. Argentite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This specimen of octahedral, splendent, jet-black acanthite after argentite, has individual elongated octohedral crystals to 3.5 cm in length shooting from a central cluster. The overall effect is that of a Chinese pagoda, with most of the crystals on top of each other. This new find has lustre - bright sparkling lustre that is hard to convey in photos and quite another world from the appearance of previous finds here. It is nearly a complete floater with no visible point of attachment, with only a small rough area near the base; which as a bonus, is a vug at the lower right edge filled with a druse of cherry red proustite. Complete all around, elegantly vertical, this is a superb acanthite by any standard from any other locality.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",386,{"id":448,"source_url":449,"license_code":332,"credit_html":450,"title":451,"description":445,"author":336,"original_width":452,"original_height":346},31078,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443964","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443964\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-acn-04d.jpg",329,{"id":454,"source_url":455,"license_code":332,"credit_html":456,"title":457,"description":445,"author":336,"original_width":458,"original_height":398},31079,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443970","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443970\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-acn-04b.jpg",475,{"id":460,"source_url":461,"license_code":332,"credit_html":462,"title":463,"description":464,"author":336,"original_width":398,"original_height":465},31080,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443972","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443972\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-acn-05b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Acanthite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Argentite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Imiter Mine, Boumalne-Dadès, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FOuarzazate_Province\" class=\"extiw\" title=\"en:Ouarzazate Province\">Ouarzazate Province\u003C\u002Fa>, Souss-Massa-Draâ Region, Morocco (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2394.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: small cabinet, 7.0 x 6.9 x 3.8 cm\n\u003Cdl>\u003Cdt>Acanthite ps. Argentite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>A hefty and massive, large specimen, this is a floater without a visible point of attachment, complete all around! This very impressive acanthite after argentite has octahedral, splendent, jet-black individual crystals to 2.3 cm in length. The crystals on the right-hand side are mostly single sharp octos while those on the left side have grown one atop another, forming a vivid resemblance to Chinese pagodas. This new find has lustre - bright sparkling lustre that is hard to convey in photos and quite another world from the appearance of previous finds here. Small druses of proustite are present at the bottom of the backside. This large, important specimen has real presence in person, and stands as a major acanthite from any locality, though I feel these new Moroccan pieces are priced less for their quality than similarly recent acanthites (of somewhat different habit) coming out of China now.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",781,{"id":467,"source_url":468,"license_code":332,"credit_html":469,"title":470,"description":464,"author":336,"original_width":346,"original_height":471},31081,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443973","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443973\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-acn-05c.jpg",234,{"id":473,"source_url":474,"license_code":332,"credit_html":475,"title":476,"description":464,"author":336,"original_width":242,"original_height":398},31082,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443979","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443979\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-acn-05a.jpg",{"id":478,"source_url":479,"license_code":332,"credit_html":480,"title":481,"description":482,"author":336,"original_width":346,"original_height":483},31083,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443989","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443989\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-acn-07c.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Acanthite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Argentite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Imiter Mine, Boumalne-Dadès, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FOuarzazate_Province\" class=\"extiw\" title=\"en:Ouarzazate Province\">Ouarzazate Province\u003C\u002Fa>, Souss-Massa-Draâ Region, Morocco (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2394.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 5.3 x 4.2 x 2.2 cm\n\u003Cdl>\u003Cdt>Acanthite ps. Argentite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>A stunning miniature! This acanthite replacement after argentite is highlighted by the two crystals at the apex of the specimen. The one on the right is doubly terminated and measures 1.5 cm in length. The one on the left has unusually curved edges and measures 1.8 cm in length - very strange crystal, that is mesmerizing! All the crystals are octahedral, with splendent luster and a jet-black color that is hard to convey because it is lustrous. This is a superb, elegant acanthite by any standard, quite different from Mexican and Chinese and German acanthites we might have seen previously\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",307,{"id":485,"source_url":486,"license_code":332,"credit_html":487,"title":488,"description":489,"author":336,"original_width":490,"original_height":346},31087,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10466877","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10466877\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-tn24a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Acanthite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Argentite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFreiberg\" class=\"extiw\" title=\"en:Freiberg\">Freiberg\u003C\u002Fa>, Freiberg District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FErzgebirge\" class=\"extiw\" title=\"en:Erzgebirge\">Erzgebirge\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSaxony\" class=\"extiw\" title=\"en:Saxony\">Saxony\u003C\u002Fa>, Germany (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-13884.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: thumbnail, 2.4 x 1.6 x 1 cm\n\u003Cdl>\u003Cdt>Acanthite pseudo. after Argentite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Acanthite is the stable phase of this silver species. this particular specimen features several equant, dark gray crystals, to .3 cm, with good metallic luster. BETTER IN PERSON!\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",287,{"id":492,"source_url":493,"license_code":332,"credit_html":494,"title":495,"description":344,"author":336,"original_width":346,"original_height":496},1811,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10430206","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10430206\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-d70d.jpg",290,{"id":498,"source_url":499,"license_code":332,"credit_html":500,"title":501,"description":502,"author":336,"original_width":503,"original_height":398},68,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10457086","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10457086\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Silver-pr04b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Acanthite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSilver\" class=\"extiw\" title=\"en:Silver\">Silver\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKongsberg\" class=\"extiw\" title=\"en:Kongsberg\">Kongsberg\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBuskerud\" class=\"extiw\" title=\"en:Buskerud\">Buskerud\u003C\u002Fa>, Norway (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2486.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: cabinet, 11.0 x 5.8 x 1.8 cm (4.5 inches tall)\n\u003Cdl>\u003Cdt>Silver with Acanthite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Superb, incredibly aesthetic, example from this most treasured of old European classic Silver locales. This piece has a beautiful dark patina caused by a micro layer of acanthite coating, and an exquisite complexity to the rope as it twists and turns like a living thing. The piece is VERY sturdy despite its elegant look, and this is a solid piece that is not flexible or \"bendy\" like some German silvers of this size. Long one of the premier silvers in the Meieran collection, and one of the half dozen best he had acquired through buying and trading over the last 50 years of trying to assemble one of the best suites of native elements. I feel that the price here is a downright bargain, all things considered; as well as compared to numerous pieces I have seen for sale in the same price range in only the last year that simply do not blow me away as this one does (heck, I have seen a dozen so-called six-figure silvers at Springfield Show alone, and they couldn't touch this with a ten foot pole for impact !). Because of the size and quality of this specimen, I was happy to have the privilege of trading this from Gene only recently. Gene told me the following as well: The one you got was originally from Wayne Thompson to Evan Jones then to me, if I remember. Exchanged for ALL my Mexican and Arizona minerals. I got it at least 12 years ago, it was in at least one of my winning Desautels-cases.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",513,{"id":505,"source_url":506,"license_code":357,"credit_html":507,"title":508,"description":509,"author":510,"original_width":511,"original_height":512},69,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=100038049","Ivar Leidus, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=100038049\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite - Imiter mine, Jbel Saghro, Tinghir, Drâa-Tafilalet, Morocco.jpg","Crystallized acanthite (4.0 × 2.5 × 1.5 cm) from Imiter mine, Jbel Saghro mountain range, Tinghir Province, Drâa-Tafilalet region, Morocco","Ivar Leidus",5400,4200,{"id":514,"source_url":515,"license_code":357,"credit_html":516,"title":7,"description":11,"author":11,"original_width":359,"original_height":517},28991,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F127953","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F127953\" rel=\"noopener\">University of Tartu, Natural History Museum\u003C\u002Fa> via Europeana",766,{"id":519,"source_url":520,"license_code":332,"credit_html":521,"title":522,"description":438,"author":336,"original_width":346,"original_height":523},1814,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443956","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443956\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-acn-03d.jpg",277,{"id":525,"source_url":526,"license_code":332,"credit_html":527,"title":528,"description":529,"author":336,"original_width":530,"original_height":346},77,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443981","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443981\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-acn-06c.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Acanthite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Argentite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Imiter Mine, Boumalne-Dadès, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FOuarzazate_Province\" class=\"extiw\" title=\"en:Ouarzazate Province\">Ouarzazate Province\u003C\u002Fa>, Souss-Massa-Draâ Region, Morocco (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2394.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: small cabinet, 6.1 x 4.6 x 4.3 cm\n\u003Cdl>\u003Cdt>Acanthite ps. Argentite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This specimen of acathite after argentite features a series of stacked, octahedral, splendent, jet-black crystals, to 1.8 cm in length. the crystals literally leap out from a matrix of calcite, silver ore, and massive acanthite (few specimens ahve any matrix, here). This new find has lustre - bright sparkling lustre that is hard to convey in photos and quite another world from the appearance of previous finds here. I particularly like the angled group at the top of the specimen, which features a birdlike crystal cluster of 2.4 cm atop. This is a superb, elegant acanthite by any standard, quite different from Mexican and Chinese and German acanthites we might have seen previously.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",371,{"id":532,"source_url":533,"license_code":332,"credit_html":534,"title":535,"description":529,"author":336,"original_width":536,"original_height":398},79,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443988","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443988\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-acn-06b.jpg",625,{"id":538,"source_url":539,"license_code":332,"credit_html":540,"title":541,"description":542,"author":336,"original_width":346,"original_height":543},31084,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10444739","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10444739\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-Calcite-azmex31b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Acanthite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Argentite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalcite\" class=\"extiw\" title=\"en:Calcite\">Calcite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Valenciana Mine, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAmatitl%C3%A1n\" class=\"extiw\" title=\"en:Amatitlán\">Amatitlán\u003C\u002Fa>, Municipio de Zumpango del Rio, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGuerrero\" class=\"extiw\" title=\"en:Guerrero\">Guerrero\u003C\u002Fa>, Mexico (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-25658.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: small cabinet, 6.2 x 5.4 x 5.3 cm\n\u003Cdl>\u003Cdt>Acanthite ps. after Argentite on Calcite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Neatly perched on a matrix of white, botryoidal calcite is a cluster of dark gray, matte luster, crystals of acanthite after argentite. The largest cube measures .45 cm across. The label on the back side of this specimen indicates that it was mined in 1892. It later entered the collection of the University of Chicago, in 1964. It is a super locality piece because acanthites on such matrix are rare, but the dated label is surely a bonus and gives solid locality designation as well!\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",389,{"id":545,"source_url":546,"license_code":332,"credit_html":547,"title":548,"description":542,"author":336,"original_width":346,"original_height":549},31085,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10444740","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10444740\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-Calcite-azmex31c.jpg",390,{"id":551,"source_url":552,"license_code":332,"credit_html":553,"title":554,"description":542,"author":336,"original_width":398,"original_height":555},31086,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10444742","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10444742\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-Calcite-azmex31a.jpg",764,{"id":557,"source_url":558,"license_code":332,"credit_html":559,"title":560,"description":561,"author":336,"original_width":562,"original_height":346},1815,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10461819","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10461819\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-rh1-57b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Acanthite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Argentite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGuanajuato\" class=\"extiw\" title=\"en:Guanajuato\">Guanajuato\u003C\u002Fa>, Mexico (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-22317.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: small cabinet, 9.2 x 5.2 x 4.1 cm\n\u003Cdl>\u003Cdt>Acanthite after Argentite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Battleship gray, lustrous, modified, crystals of acanthite after argentite, to.3 cm across, abound along with a quartz druse on matrix. Guanajuato is a noted locality for this pseudomorph.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",311,{"id":564,"source_url":565,"license_code":566,"credit_html":567,"title":568,"description":569,"author":570,"original_width":571,"original_height":572},1816,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10652290","Public domain","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10652290\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Argentite (Maroc) .jpg","argentite : Imiter Mine, Imiter District, Djebel Saghro (Jbel Saghro), Ouarzazate Province, Souss-Massa-Draâ Region, Morocco - 30 mm","Parent Géry",4288,2848,{"id":574,"source_url":575,"license_code":332,"credit_html":576,"title":577,"description":578,"author":336,"original_width":579,"original_height":398},74,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10162251","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10162251\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-221205.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAcanthite\" class=\"extiw\" title=\"en:Acanthite\">Acanthite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Imiter Mine, Boumalne-Dadès, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FOuarzazate_Province\" class=\"extiw\" title=\"en:Ouarzazate Province\">Ouarzazate Province\u003C\u002Fa>, Souss-Massa-Draâ Region, Morocco (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2394.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 6.1 x 4.6 x 4.3 cm.\u003C\u002Fdd>\n\u003Cdd>This specimen of acanthite after argentite features a series of stacked, octahedral, splendent, jet-black crystals, to 1.8 cm in length. The crystals literally leap out from a matrix of calcite, silver ore, and massive acanthite (few specimens have any matrix, here). I particularly like the angled group at the top of the specimen, which features a birdlike crystal cluster of 2.4 cm atop.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",638,{"id":581,"source_url":582,"license_code":332,"credit_html":583,"title":584,"description":585,"author":336,"original_width":346,"original_height":586},75,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10442588","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10442588\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-rh3-02b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Acanthite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGuanajuato\" class=\"extiw\" title=\"en:Guanajuato\">Guanajuato\u003C\u002Fa>, Mexico (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-22317.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 3.4 x 1.8 x 1.2 cm\n\u003Cdl>\u003Cdt>Acanthite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Exquisite group of sharp metallic crystals to 7mm on matrix from the classic Mexican location for silver minerals, Guanajuato. These crystals appear to have been deposited onto argentite crystals which formed earlier and were likely coated with some microcrystalline silver mineral. Some of the earlier deposited argentite has formed very interesting washboard crystal groups which give the piece an unusual look. Ex. Earl Calvert collection circa 1930s-1960s probably. Later, ex. Richard Hauck Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",356,{"id":588,"source_url":589,"license_code":332,"credit_html":590,"title":591,"description":585,"author":336,"original_width":592,"original_height":398},76,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10442590","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10442590\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-rh3-02a.jpg",530,{"id":594,"source_url":595,"license_code":332,"credit_html":596,"title":597,"description":529,"author":336,"original_width":579,"original_height":398},78,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443983","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443983\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-acn-06a.jpg",{"id":599,"source_url":600,"license_code":332,"credit_html":601,"title":602,"description":603,"author":336,"original_width":604,"original_height":337},80,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10452115","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10452115\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-ma26a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Acanthite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Imiter Mine, Boumalne-Dadès, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FOuarzazate_Province\" class=\"extiw\" title=\"en:Ouarzazate Province\">Ouarzazate Province\u003C\u002Fa>, Souss-Massa-Draâ Region, Morocco (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2394.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 3 x 2.9 x 2.1 cm\n\u003Cdl>\u003Cdt>Acanthite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Eerily distorted group of large octahedral crystals. Largest crystal 1.0 cm. BETTER IN PERSON!\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",473,{"id":606,"source_url":607,"license_code":332,"credit_html":608,"title":609,"description":610,"author":336,"original_width":337,"original_height":611},81,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10452162","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10452162\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-ma7a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Acanthite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Imiter Mine, Boumalne-Dadès, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FOuarzazate_Province\" class=\"extiw\" title=\"en:Ouarzazate Province\">Ouarzazate Province\u003C\u002Fa>, Souss-Massa-Draâ Region, Morocco (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2394.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 2.9 x 2.5 x 2 cm\n\u003Cdl>\u003Cdt>Acanthite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This is an aesthetic group of octahedrons of acanthite . The largest crystal measures 1.5 cm in length.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",479,{"id":613,"source_url":614,"license_code":332,"credit_html":615,"title":616,"description":617,"author":336,"original_width":337,"original_height":592},1812,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10430796","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10430796\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-gld28a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Acanthite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Argentite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Mina San Juan de Rayas, Guanajuato, Mexico\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 3 x 2.75 x 1.8 cm\n\u003Cdl>\u003Cdt>Acanthite ps. Argentite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>As the fact that the piece has been so frequently illustrated attests to, it is super-fine. The sharpness and size of these crystals, combined with phenomenal lustre, make it one of the best miniatures for the species and locality. Hands down. It was a personal gift from Dr. Miguel Romero, the noted Mexican collector, to Fred Pough. It was later sold by Pough, after Romero passed away, to California dealer Cal Graeber who resold it to collector Irv Brown in the 1990's. It is the only piece I have ever seen for sale with an actual label from Romero, in his hand (written on the back of his business card in black ink, with Spanish spellings of the species and locality). 3 x 2.75 x 1.8 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",{"id":619,"source_url":620,"license_code":332,"credit_html":621,"title":622,"description":438,"author":336,"original_width":623,"original_height":398},1813,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443952","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10443952\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Argentite-acn-03a.jpg",667,{"id":625,"source_url":626,"license_code":332,"credit_html":627,"title":628,"description":629,"author":336,"original_width":630,"original_height":631},17319,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10477102","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10477102\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Silver-imiter4.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Acanthite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSilver\" class=\"extiw\" title=\"en:Silver\">Silver\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Imiter Mine, Boumalne-Dadès, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FOuarzazate_Province\" class=\"extiw\" title=\"en:Ouarzazate Province\">Ouarzazate Province\u003C\u002Fa>, Souss-Massa-Draâ Region, Morocco (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2394.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 4.3 x 4.1 x 2.1 cm\n\u003Cdl>\u003Cdt>Silver on Acanthite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Complexly turning, elegant wires with great lustre and twisty form, robust and yet bendable at the same time, look like they are shooting off this crystallized acanthite matrix. The complexity of the silver wires is actually more apparent in person - these are not \"rounded\" at all, and in fact the wires have long shallow grooves running from bottom to top. Superbly balanced, this is good from either side and is one of the finest miniatures for aesthetics, that I have seen in this material. From a 2008 find at the famous Imiter Mine, this is a stashed specimen picked from the original lots that came out at the time.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",1752,1800,{"id":633,"source_url":634,"license_code":332,"credit_html":635,"title":636,"description":637,"author":336,"original_width":638,"original_height":639},19216,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10146898","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10146898\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Silver-Acanthite-Pharmacolite-157374.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSilver\" class=\"extiw\" title=\"en:Silver\">Silver\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Acanthite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPharmacolite\" class=\"extiw\" title=\"en:Pharmacolite\">Pharmacolite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Chañarcillo, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCopiap%C3%B3_Province\" class=\"extiw\" title=\"en:Copiapó Province\">Copiapó Province\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAtacama_Region\" class=\"extiw\" title=\"en:Atacama Region\">Atacama Region\u003C\u002Fa>, Chile (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-654.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 4.3 x 4.3 x 2.7 cm.\u003C\u002Fdd>\n\u003Cdd>An old-time, very rich silver ore specimen UNUSUAL and UNCOMMON associations from the very famous Chanarcillo mines of Chile. The 3-dimensional specimen is nearly solid silver with a scattering of black acanthite. One end is RICHLY covered by white tufts of pharmacolite, an UNCOMMON hydrated arsenate. Ex. Carl Davis Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",550,586,{"id":641,"source_url":642,"license_code":357,"credit_html":643,"title":644,"description":11,"author":11,"original_width":359,"original_height":645},29140,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F91673","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F91673\" rel=\"noopener\">The Estonian Museum of Natural History\u003C\u002Fa> via Europeana","Argentite",714,{"id":647,"source_url":648,"license_code":357,"credit_html":649,"title":644,"description":11,"author":11,"original_width":359,"original_height":650},29141,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F61776","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F61776\" rel=\"noopener\">The Estonian Museum of Natural History\u003C\u002Fa> via Europeana",750,{"id":652,"source_url":653,"license_code":357,"credit_html":654,"title":644,"description":11,"author":11,"original_width":359,"original_height":650},29142,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F61764","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F61764\" rel=\"noopener\">The Estonian Museum of Natural History\u003C\u002Fa> via Europeana",{"id":656,"source_url":657,"license_code":658,"credit_html":659,"title":644,"description":11,"author":11,"original_width":359,"original_height":660},29143,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F115195","CC BY 4.0","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F115195\" rel=\"noopener\">Department of Geology, TalTech\u003C\u002Fa> via Europeana",666,{"id":662,"source_url":663,"license_code":357,"credit_html":664,"title":644,"description":11,"author":11,"original_width":665,"original_height":359},29144,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F127818","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F127818\" rel=\"noopener\">University of Tartu, Natural History Museum\u003C\u002Fa> via Europeana",985,{"id":667,"source_url":668,"license_code":332,"credit_html":669,"title":670,"description":671,"author":336,"original_width":337,"original_height":338},74833,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10154161","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10154161\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Polybasite-Chalcopyrite-184768.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAcanthite\" class=\"extiw\" title=\"en:Acanthite\">Acanthite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPolybasite\" class=\"extiw\" title=\"en:Polybasite\">Polybasite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FChalcopyrite\" class=\"extiw\" title=\"en:Chalcopyrite\">Chalcopyrite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGuanajuato\" class=\"extiw\" title=\"en:Guanajuato\">Guanajuato\u003C\u002Fa>, Municipio de Guanajuato, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGuanajuato\" class=\"extiw\" title=\"en:Guanajuato\">Guanajuato\u003C\u002Fa>, Mexico (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2322.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 3.3 x 3.3 x 3.0 cm.\u003C\u002Fdd>\n\u003Cdd>A fine specimen of sparkly, gray acanthite pseudomorphs after platy polysbasite crystals and nicely accented by sparkly, golden chalcopyrite microcrystals from the mines of Guanajuato, Mexico. Ex. Dave Stoudt Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",{"id":673,"source_url":674,"license_code":332,"credit_html":675,"title":676,"description":677,"author":336,"original_width":337,"original_height":678},74834,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10157196","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10157196\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Polybasite-Chalcopyrite-196080.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAcanthite\" class=\"extiw\" title=\"en:Acanthite\">Acanthite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPolybasite\" class=\"extiw\" title=\"en:Polybasite\">Polybasite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FChalcopyrite\" class=\"extiw\" title=\"en:Chalcopyrite\">Chalcopyrite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: San Juan de Rayas Mine (Rayas Mine; Reyes Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGuanajuato\" class=\"extiw\" title=\"en:Guanajuato\">Guanajuato\u003C\u002Fa>, Municipio de Guanajuato, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGuanajuato\" class=\"extiw\" title=\"en:Guanajuato\">Guanajuato\u003C\u002Fa>, Mexico (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2324.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 6.0 x 3.3 x 2.5 cm.\u003C\u002Fdd>\n\u003Cdd>A superb and rich silver ore combination specimen from the famous Rayas Mine at Guanajuato, Mexico. Sparkly, golden-yellow bright chalcopyrite microcrystals cover matrix of essentially solid, bladed polybasite and blocky acanthite crystals. A couple of quartz rosettes are a nice accent to the gray and gold sulfides. Ex. Dave Stoudt Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",350,{"id":680,"source_url":681,"license_code":332,"credit_html":682,"title":683,"description":684,"author":336,"original_width":685,"original_height":337},74837,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10166718","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10166718\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Polybasite-247917.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAcanthite\" class=\"extiw\" title=\"en:Acanthite\">Acanthite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPolybasite\" class=\"extiw\" title=\"en:Polybasite\">Polybasite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: San Juan de Rayas Mine (Rayas Mine; Reyes Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGuanajuato\" class=\"extiw\" title=\"en:Guanajuato\">Guanajuato\u003C\u002Fa>, Municipio de Guanajuato, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGuanajuato\" class=\"extiw\" title=\"en:Guanajuato\">Guanajuato\u003C\u002Fa>, Mexico (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2324.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 5.5 x 4.3 x 2.7 cm.\u003C\u002Fdd>\n\u003Cdd>This is an important silver species specimen with excellent aesthetics and very rich masses of sharp polybasite crystals. The bladed polybasites form clusters atop a natural pedestal of silver-rich matrix, and atop each of the polybasite crystals there are sharp outgrowths of brilliantly metallic, pseudocubic, little acanthite crystals - mostly 1mm in size but forming larger clusters. The polybasites, as do so many from here, have some slight coating of iridescent material or alteration. The stark contrast between these pseudocubic-blocked towers and the bladed polybasite under them is really interesting. Ex. Harold Urish Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",519,{"id":687,"source_url":688,"license_code":332,"credit_html":689,"title":690,"description":684,"author":336,"original_width":346,"original_height":691},74838,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10166719","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10166719\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Polybasite-247918.jpg",358,{"id":693,"source_url":694,"license_code":332,"credit_html":695,"title":696,"description":697,"author":336,"original_width":398,"original_height":698},74840,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10420002","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10420002\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Acanthite-Polybasite-rom17a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentite\" class=\"extiw\" title=\"en:Argentite\">Acanthite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPolybasite\" class=\"extiw\" title=\"en:Polybasite\">Polybasite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: San Juan de Rayas Mine (Rayas Mine; Reyes Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGuanajuato\" class=\"extiw\" title=\"en:Guanajuato\">Guanajuato\u003C\u002Fa>, Municipio de Guanajuato, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGuanajuato\" class=\"extiw\" title=\"en:Guanajuato\">Guanajuato\u003C\u002Fa>, Mexico (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2324.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 4.8 x 4.5 x 2.3 cm\n\u003Cdl>\u003Cdt>Acanthite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Almost a complete floater, this acanthite specimen can be displayed on either side to equal effect. It is very 3-dimensional and treelike, and just sharper than most acanthites from here tend to be. The dark gray crystals are arborescent, with a few exhibiting incipient, hopper growth. The largest crystal is 1.1 cm in length. Some crystals have a thin brassy yellow coating of chalcopyrite, as well as the base of the cluster. Ex. Dr. Miguel Romero Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",791,[700],{"id":701,"url":702,"label":703,"formula":704,"spacegroup":705,"year":280},11,"\u002Fcif\u002F11.cif","Frueh 1958","Ag2 S","P 1 21\u002Fn 1",[707,708,709,710,711,712,713,714,715,716,717,718,719,720,721,722,723,724,725,726,727,728,729,730,731,732,733,734,735,736,737,738,739,740,741,742],"Akanthita","Akanthite","Akantitt","Argentiet","Argentit","Argentita","Argentitas","Argentite-beta","Argentite-β","Argentīts","Argentyt","Argyrit","Argyrita","Argyrite","Argyrose","Beta-Argentite","Daleminzite","Glanzerz","Glaserz","Henkelit","Henkelita","Henkelite","Para-Silberglanz","Silberglanz","Silberschwärze","Silver Glance","Silverglans","Sølvglans","Vitreous Silver","Weicherz","α-Argentit","α-Argentita","α-Argentite","β-Argentit","β-Argentita","β-Argentite",[744,748,752,756,760,764,768,772,775,779,783,788,792,799,802,805,810,815,819,824,828,832,836,840,844,847,850,854,857,860,864,867,870,873,876,880,885,889],{"lang":745,"names":746},"ar",[747],"أكانثيت",{"lang":749,"names":750},"az",[751],"Akantit",{"lang":753,"names":754},"be",[755],"Акантыт",{"lang":757,"names":758},"ca",[759],"acantita",{"lang":761,"names":762},"cs",[763,751],"Akanthit",{"lang":765,"names":766},"de",[767,763],"Ag2S",{"lang":769,"names":770},"el",[771],"Ακανθίτης",{"lang":773,"names":774},"es",[759],{"lang":776,"names":777},"et",[778],"akantiit",{"lang":780,"names":781},"eu",[782],"Acanthita",{"lang":784,"names":785},"fa",[786,787],"آکانتیت","اکانتیت",{"lang":789,"names":790},"fi",[791],"Akantiitti",{"lang":793,"names":794},"fr",[795,7,796,708,797,644,715,720,721,723,798],"12068-32-5","Acantite","Argent vitreux","Henkélite",{"lang":800,"names":801},"hr",[751],{"lang":803,"names":804},"id",[751],{"lang":806,"names":807},"it",[808,809],"acanthite","acantite",{"lang":811,"names":812},"ja",[813,814],"アカンサイト","針銀鉱",{"lang":816,"names":817},"ka",[818],"აკანთიტი",{"lang":820,"names":821},"lv",[822,823],"Akantīts","Dalemincīts",{"lang":825,"names":826},"nb",[827],"akanthitt",{"lang":829,"names":830},"nl",[831],"acanthiet",{"lang":833,"names":834},"nn",[835],"Akanthitt",{"lang":837,"names":838},"oc",[839],"Acantita",{"lang":841,"names":842},"pl",[843],"Akantyt",{"lang":845,"names":846},"pt",[839,809],{"lang":848,"names":849},"pt-br",[839],{"lang":851,"names":852},"ru",[853],"Акантит",{"lang":855,"names":856},"sh",[751],{"lang":858,"names":859},"sk",[751],{"lang":861,"names":862},"sl",[863],"akantit",{"lang":865,"names":866},"sr",[853],{"lang":868,"names":869},"sv",[751],{"lang":871,"names":872},"uk",[853],{"lang":874,"names":875},"uz",[751],{"lang":877,"names":878},"vi",[879],"Acanthit",{"lang":881,"names":882},"zh",[883,884],"螺状硫银矿","螺硫银矿",{"lang":886,"names":887},"zh-hant",[888],"螺狀硫銀礦",{"lang":890,"names":891},"zh-tw",[892,888],"斜方輝銀礦","Q413498",{"history":895,"applications":899},{"markdown":896,"model_version":897,"prompt_version":898,"reviewed_at":11},"Long before it had a mineralogical name, acanthite was the dark, leaden stuff that silver miners pulled out of veins across central Europe. They called it *silver glance* in English, *Silberglanz* in German — names that described the metallic sheen of a fresh-broken crystal rather than what the mineral was.\n\nThe formal name came in 1855, when the mineralogist Gustav Adolf Kenngott described specimens with sharp, pointed crystals and named the mineral from the Greek *akantha* — meaning thorn — in reference to that crystal shape[1]. The type locality was the silver district around Jáchymov — Joachimsthal in German — in the Ore Mountains of Bohemia[2].\n\nFor a time, two minerals seemed to coexist. Kenngott's pointed acanthite was monoclinic, with crystals tapering like spines. But silver miners had long known a second form with cubic, blocky crystals: that one had been called *argentite*, from the Latin *argentum* for silver. With the arrival of X-ray and other instrumental analysis, the two names resolved into one substance. The cubic argentite of the old labels is the high-temperature form of silver sulfide, stable only above 173 °C. The room-temperature form is monoclinic acanthite[3]. As argentite crystals cool below that temperature, they distort internally into acanthite while keeping their outward cubic shape — a paramorph, meaning a crystal whose external form was inherited from a higher-temperature mineral but whose internal lattice has been rebuilt[4]. Every old \"argentite\" label in a museum drawer is, by atomic structure, an acanthite[5].\n\n### Acanthite in the great silver districts\n\nThe history of acanthite is, in practice, the history of silver mining. The mineral itself was the ore — under whatever name miners gave it locally.\n\nIn 1546, Spanish prospectors struck the great silver mountain of Potosí in what is now Bolivia. The Mexican district of Zacatecas was discovered the same year[6]. The two became the engines of the Spanish silver economy and triggered what historians call the Spanish Price Revolution across Europe[7]. Acanthite, together with native silver and the silver halides, was a principal ore in both fields.\n\nThree centuries later, the centre of gravity shifted north. The Comstock Lode at Virginia City, Nevada, opened in 1859 as the first major silver ore deposit in the United States[8].","claude-opus-4-7","1.7.0",{"markdown":900,"model_version":897,"prompt_version":898,"reviewed_at":11},"Acanthite is the most important ore of silver[1]. Where the mineral occurs in workable concentrations — together with native silver, the silver halides like chlorargyrite, and the silver sulfosalts — it is mined for the metal it carries[2].\n\nThe bulk of the world's silver, however, no longer comes from ores worked for silver alone. Most of it is recovered as a by-product of copper, gold, lead, and zinc refining[3]. Acanthite is one of the minerals that accompanies these base-metal sulfides, and the silver it carries enters the same refinery streams.\n\nWhen acanthite is processed for silver, the route runs through froth flotation, which separates the fine-ground sulfide grains from the surrounding rock. A cyanide leach then dissolves the silver out of the concentrate — the same chemistry used for gold. When silver instead comes out of a copper smelter, it is recovered during the electrolytic refining of the copper, the step that uses an electric current to deposit pure metal on a cathode[4]. Peru and Mexico remain among the principal silver-producing countries, and roughly a fifth of world supply comes from recycling rather than fresh mining[5].\n\n### What the silver becomes\n\nSilver has the highest electrical and thermal conductivity of any metal, and the highest optical reflectivity[6]. That set of properties drives most of its modern industrial use.\n\nThe largest current demand sits in electronics. Silver is used in electrical contacts and conductors, and at radio frequencies in the very-high-frequency band and above, where its conductivity advantage matters most[7]. Silver is also used in solar panels[8].\n\nA second cluster of uses is medical and antibacterial. Dilute solutions of silver nitrate and other silver compounds serve as disinfectants and microbiocides; they are added to bandages, wound dressings, catheters, and other medical instruments[9].\n\nThe remaining demand is spread across jewellery, high-value tableware, brazing alloys, specialised mirrors and window coatings, catalysis of chemical reactions, photographic and X-ray film, and as a colorant in stained glass[10]."]