[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:3294":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":20,"key_elements":21,"impurities":22,"cim":23,"ima_status":24,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":11,"discovery_year":27,"strunz10ed1":28,"strunz10ed2":29,"strunz10ed3":30,"strunz10ed4":31,"dana8ed1":32,"dana8ed2":33,"dana8ed3":34,"dana8ed4":34,"csystem":35,"cclass":36,"spacegroup":37,"spacegroupset":38,"a":39,"b":40,"c":41,"alpha":40,"beta":40,"gamma":40,"aerror":11,"berror":11,"cerror":11,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":42,"csmetamict":14,"commentcrystal":11,"twinning":43,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":44,"tlform":11,"hmin":45,"hmax":46,"hardtype":11,"vhnmin":47,"vhnmax":48,"vhnerror":11,"vhng":49,"vhns":11,"commenthard":11,"dmeas":50,"dmeas2":50,"dcalc":51,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":52,"lustretype":53,"commentluster":54,"diapheny":11,"streak":55,"colour":56,"commentcolor":11,"colors":57,"streak_colors":61,"luminescence":62,"uv":11,"cleavage":63,"cleavagetype":64,"fracturetype":65,"tenacity":66,"commentbreak":11,"opticaltype":67,"opticalsign":68,"opticalalpha":40,"opticalalpha2":40,"opticalalphaerror":11,"opticalbeta":40,"opticalbeta2":40,"opticalbetaerror":11,"opticalgamma":40,"opticalgamma2":40,"opticalgammaerror":11,"opticalomega":69,"opticalomega2":70,"opticalomegaerror":11,"opticalepsilon":71,"opticalepsilon2":40,"opticalepsilonerror":11,"opticaln":40,"opticaln2":40,"opticalnerror":11,"optical2vcalc":40,"optical2vcalc2":40,"optical2vcalcerror":11,"optical2vmeasured":40,"optical2vmeasured2":40,"optical2vmeasurederror":11,"rimin":72,"rimax":73,"opticaldispersion":11,"opticalpleochroism":74,"opticalpleochorismdesc":75,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":76,"opticalanisotropism":77,"opticalbireflectance":11,"opticalextinction":11,"opticalr":78,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":79,"occurrence":11,"otheroccurrence":80,"type_specimen_store":11,"description_short":81,"aboutname":82,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":83,"reviewed_at":11,"variety_of":11,"varieties":84,"group_members":85,"associates":107,"confused_with":123,"type_localities":125,"occurrence_total":132,"citations":133,"images":243,"structures":478,"synonyms":496,"language_names":510,"wikidata_qid":610,"texts":611},3294,"1:1:3294:6","bf0867d8-46d0-4a5d-9ee3-a1f643d374c6","Proustite","Prs",0,"mineral",null,34501,12042,false,"Ag\u003Csub>3\u003C\u002Fsub>AsS\u003Csub>3\u003C\u002Fsub>",[17,18,19],"Ag","As","S",[17,18,19],[17,18],",Sb,,","5.2.3",[25,26],"APPROVED","GRANDFATHERED","1832","2","G","A","05","3","4","1","Trigonal",13,98,"R-3c ","10.79","0","8.69",6,"\u003Cmi>On {10_14} to produce trillings, also on {10_11}{0001}{01_12}\u003C\u002Fmi>","Prismatic crystals to 8 cm, also scalenohedral crystals.",2,2.5,"70","105",25,"5.57","5.625","Sub Metallic","Adamantine","Darkens on exposure to light","Vermilion red","Scarlet, Vermilion or reddish gray",[58,59,60],"red","gray","orange",[58],"None","Distinct on \u003Cmi>{10_11}\u003C\u002Fmi>","Distinct\u002FGood","Irregular\u002FUneven,Conchoidal","brittle","Uniaxial","-","3.087","3.088","2.7924",2.7924,3.088,"Visible","Cochineal red to blood red","Anisotropic","Strong","(36.9,39.6) 400,\r\n(36.8,39.5) 420,\r\n(36.7,39.4) 440,\r\n(35.8,38.2) 460,\r\n(34.0,36.8) 480,\r\n(32.5,35.0) 500,\r\n(31.2,33.5) 520,\r\n(30.0,32.3) 540,\r\n(29.0,31.2) 560,\r\n(28.2,30.3) 580,\r\n(27.5,29.6) 600,\r\n(26.9,29.0) 620,\r\n(26.3,28.5) 640,\r\n(25.9,28.2) 660,\r\n(25.4,27.9) 680,\r\n(25.0,27.6) 700","ore of silver","A late forming mineral in hydrothermal veins, also in the supergene zone.","Proustite-Pyrargyrite Series. The As analogue of pyrargyrite.\r\nTrigonal dimorph of Xanthoconite.\r\n\r\nOne of the so-called \"ruby silvers\".","Named by François S. Beudant in 1832 in honor of Joseph-Louis Proust (26 September 1754, Angers, France – 5 July 1826, Angers, France), chemist and actor, for Proust's work on the red silver minerals (proustite-pyrargyrite series).  He is most famous for discovering the law of definite proportion, stating that chemical compounds always combine in constant proportions.","2025-11-25 14:28:20",[],[86,93,100],{"id":87,"name":88,"entrytype":9,"csystem":35,"ima_formula":89,"mindat_formula":89,"hmin":46,"hmax":46,"dmeas":90,"dcalc":91,"primary_image_id":92},3313,"Pyrargyrite","Ag\u003Csub>3\u003C\u002Fsub>SbS\u003Csub>3\u003C\u002Fsub>","5.82","5.855",20231,{"id":94,"name":95,"entrytype":9,"csystem":96,"ima_formula":89,"mindat_formula":89,"hmin":45,"hmax":45,"dmeas":97,"dcalc":98,"primary_image_id":99},3325,"Pyrostilpnite","Monoclinic","5.94","5.97",20335,{"id":101,"name":102,"entrytype":9,"csystem":96,"ima_formula":15,"mindat_formula":15,"hmin":45,"hmax":103,"dmeas":104,"dcalc":105,"primary_image_id":106},4330,"Xanthoconite",3,"5.54","5.53",31002,[108,115,122],{"id":109,"name":110,"entrytype":9,"csystem":96,"ima_formula":111,"mindat_formula":111,"hmin":45,"hmax":46,"dmeas":112,"dcalc":113,"primary_image_id":114},10,"Acanthite","Ag\u003Csub>2\u003C\u002Fsub>S","7.2","7.24",66,{"id":116,"name":117,"entrytype":9,"csystem":96,"ima_formula":118,"mindat_formula":118,"hmin":46,"hmax":46,"dmeas":119,"dcalc":120,"primary_image_id":121},59,"Aguilarite","Ag\u003Csub>4\u003C\u002Fsub>SeS","7.40","7.65",399,{"id":101,"name":102,"entrytype":9,"csystem":96,"ima_formula":15,"mindat_formula":15,"hmin":45,"hmax":103,"dmeas":104,"dcalc":105,"primary_image_id":106},[124],{"id":101,"name":102,"entrytype":9,"csystem":96,"ima_formula":15,"mindat_formula":15,"hmin":45,"hmax":103,"dmeas":104,"dcalc":105,"primary_image_id":106},[126],{"id":127,"txt":128,"latitude":129,"longitude":130,"country":131},777,"Jáchymov, Karlovy Vary District, Karlovy Vary Region, Czech Republic",50.3661111,12.9233333,"Czech Republic",787,[134,138,142,147,152,157,162,166,170,174,179,183,187,192,197,201,205,210,215,220,224,228,233,238],{"id":135,"year":136,"html":137,"doi":11},18260354,1795,"Klaproth, M. H. (1795) IX. Untersuchung der Silbererze, Rothgültigerz . In \u003Ci>Beiträge zur chemischen Kenntniss der Mineralkörper\u003C\u002Fi> Vol. 1. Rottmann. p.141-145.",{"id":139,"year":140,"html":141,"doi":11},18530124,1830,"Beudant, François-Sulpice (1830) \u003Ci>Traité élémentaire de minéralogie. Deuxiéme Edition [Elementary Treatise on Mineralogy. Second Edition]\u003C\u002Fi> (2nd ed.) Vol. 1 - Tome Premier [Volume One]. Chez Verdière. \u003Ca target='_blank' href='https:\u002F\u002Farchive.org\u002Fdownload\u002Ftraitlmentaired02unkngoog\u002Ftraitlmentaired02unkngoog.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":143,"year":144,"html":145,"doi":146},5362,1887,"Miers, H. A., Prior, G. T. (1887) On a Specimen of Proustite containing Antimony. \u003Ci>Mineralogical Magazine and Journal of the Mineralogical Society\u003C\u002Fi>,  7 (35) 196-200 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1887.007.35.07'>doi:10.1180\u002Fminmag.1887.007.35.07\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_7\u002F7-35-196.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1887.007.35.07",{"id":148,"year":149,"html":150,"doi":151},5376,1888,"Miers, H. A. (1888) Contributions to the Study of Pyrargyrite and Proustite. \u003Ci>Mineralogical Magazine and Journal of the Mineralogical Society\u003C\u002Fi>,  8 (37) 37-102 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1888.008.37.01'>doi:10.1180\u002Fminmag.1888.008.37.01\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_8\u002F8-37-37.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1888.008.37.01",{"id":153,"year":154,"html":155,"doi":156},235642,1910,"Ransome, Frederick Leslie (1910) Criteria of downward sulphide enrichment. \u003Ci>Economic Geology\u003C\u002Fi>,  5 (3) 205-220 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2113\u002Fgsecongeo.5.3.205'>doi:10.2113\u002Fgsecongeo.5.3.205\u003C\u002Fa>","10.2113\u002Fgsecongeo.5.3.205",{"id":158,"year":159,"html":160,"doi":161},7882069,1934,"Athanasiu, G. (1934) L'effet photoélectrique de quelques cristaux semiconducteurs - II. proustite, pyrargyrite, bournonite, molybdénite. \u003Ci>Journal de Physique et le Radium\u003C\u002Fi>, 5 (3). 132-140 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1051\u002Fjphysrad:0193400503013200'>doi:10.1051\u002Fjphysrad:0193400503013200\u003C\u002Fa>","10.1051\u002Fjphysrad:0193400503013200",{"id":163,"year":164,"html":165,"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":167,"year":168,"html":169,"doi":11},523908,1963,"Toulmin, Priestley, III (1963) Proustite-pyrargyrite solid solutions. \u003Ci>American Mineralogist\u003C\u002Fi>,  48 (7-8). 725-736 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM48\u002FAM48_725.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":171,"year":172,"html":173,"doi":11},16120745,1966,"Engel, P., Nowacki, W. (1966) Die Verfeinerung der Kristallstruktur von Proustit, Ag3AsS3, und Pyrargyrit, Ag3SbS3. Neues Jahrbuch für Mineralogie, Monatshefte: 1966: 181-184.",{"id":175,"year":176,"html":177,"doi":178},2716415,1968,"Bardsley, W., Jones, O. (1968) On the crystal growth of optical quality proustite and pyrargyrite. \u003Ci>Journal of Crystal Growth\u003C\u002Fi>, 3. 268-271 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002F0022-0248(68)90147-4'>doi:10.1016\u002F0022-0248(68)90147-4\u003C\u002Fa>","10.1016\u002F0022-0248(68)90147-4",{"id":180,"year":176,"html":181,"doi":182},2561784,"BARDSLEY, W., JONES, O. (1968) Synthesis of Optical Quality Proustite and Pyrargyrite. \u003Ci>Nature\u003C\u002Fi>, 217 (5127). 444-445 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1038\u002F217444a0'>doi:10.1038\u002F217444a0\u003C\u002Fa>","10.1038\u002F217444a0",{"id":184,"year":176,"html":185,"doi":186},13474461,"Wehmeier, F.H.; Laudise, R.A.; Shiever, J.W. (1968) The system Ag2S-As2S3 and the growth of crystals of proustite, smithite and pyrargyrite. \u003Ci>Materials Research Bulletin\u003C\u002Fi>,  3 (9). 767-777 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002F0025-5408(68)90046-9'>doi:10.1016\u002F0025-5408(68)90046-9\u003C\u002Fa>","10.1016\u002F0025-5408(68)90046-9",{"id":188,"year":189,"html":190,"doi":191},402589,1978,"Pinet, Michèle, Cervelle, Bernard, Desnoyers, Christian (1978) Réflectance, indice de réfraction et expression quantitative de la couleur de proustites et pyrargyrites naturelles et artificielles : interprétation génétique. \u003Ci>Bulletin de Minéralogie\u003C\u002Fi>,  101 (1) 43-53 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3406\u002Fbulmi.1978.7172'>doi:10.3406\u002Fbulmi.1978.7172\u003C\u002Fa>","10.3406\u002Fbulmi.1978.7172",{"id":193,"year":194,"html":195,"doi":196},16542394,1982,"Baisa, D.F., .V. Mal ' Tsev, S (1982) NQR investigations of structural phase transitions in crystals of proustite and pyrargyrite. \u003Ci>Journal of Molecular Structure\u003C\u002Fi>,  83. 387-390 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002F0022-2860(82)85217-4'>doi:10.1016\u002F0022-2860(82)85217-4\u003C\u002Fa>","10.1016\u002F0022-2860(82)85217-4",{"id":198,"year":199,"html":200,"doi":11},16120746,1985,"Allen, S. (1985) Phase transitions in proustite I. Structural studies. Phase Transitions: 6: 1-24.",{"id":202,"year":203,"html":204,"doi":11},16771789,1990,"Anthony, John Williams, Bideaux, Richard A., Bladh, Kenneth W., Nichols, Monte C. (1990) \u003Ci>Handbook of Mineralogy\u003C\u002Fi> Vol. 1 - Elements, Sulfides, Sulfosalts. Mineral Data Publishing, Tucson, Arizona.",{"id":206,"year":207,"html":208,"doi":209},5049363,1991,"Yang, S. R., Taylor, K. N. R. (1991) Ionic conductivity in single‐crystal proustite Ag3AsS3. \u003Ci>Journal of Applied Physics\u003C\u002Fi>, 69 (1). 420-428 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1063\u002F1.347733'>doi:10.1063\u002F1.347733\u003C\u002Fa>","10.1063\u002F1.347733",{"id":211,"year":212,"html":213,"doi":214},127781,1999,"Harlov, Daniel E. (1999) Thermochemistry of Ag-Cu exchange equilibria between proustite, sinnerite, and pearceite: Constraints on Ag-Cu and As-Sb mixing in pyrargyrite-proustite. \u003Ci>European Journal of Mineralogy\u003C\u002Fi>,  11 (4) 709-720 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1127\u002Fejm\u002F11\u002F4\u002F0709'>doi:10.1127\u002Fejm\u002F11\u002F4\u002F0709\u003C\u002Fa>","10.1127\u002Fejm\u002F11\u002F4\u002F0709",{"id":216,"year":217,"html":218,"doi":219},14151762,2000,"Subramanian, Raman K.; Muntean, Ligia; Norcross, James A.; Ailion, David C. (2000) 109Ag NMR investigation of atomic motion in the incommensurate and paraelectric phases of proustite (Ag3AsS3). \u003Ci>Physical Review B\u003C\u002Fi>,  61 (2). 996-1002 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1103\u002Fphysrevb.61.996'>doi:10.1103\u002Fphysrevb.61.996\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Ffiles.core.ac.uk\u002Fdownload\u002Fpdf\u002F276283733.pdf' class='refpdflink'>\u003C\u002Fa>","10.1103\u002Fphysrevb.61.996",{"id":221,"year":222,"html":223,"doi":11},16693743,2003,"Ondruš, P., Veselovský, F., Gabašová, A., Hloušek, J., Šrein, V., Vavřín, I., Skála, R., Sejkora, J., Drábek, M. (2003) Primary minerals of the Jáchymov ore district. \u003Ci>Journal of the Czech Geological Society\u003C\u002Fi>,  48 (3-4) 19-147 \u003Ca target='_blank' href='http:\u002F\u002Fwww.jgeosci.org\u002Fcontent\u002FJCGS2003_3-4__ondrus2.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":225,"year":226,"html":227,"doi":11},16966828,2005,"(2005) Proustite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fproustite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":229,"year":230,"html":231,"doi":232},128646,2007,"Kharbish, Sherif, Libowitzky, Eugen, Beran, Anton (2007) The effect of As-Sb substitution in the Raman spectra of tetrahedrite-tennantite and pyrargyrite-proustite solid solutions. \u003Ci>European Journal of Mineralogy\u003C\u002Fi>,  19 (4) 567-574 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1127\u002F0935-1221\u002F2007\u002F0019-1737'>doi:10.1127\u002F0935-1221\u002F2007\u002F0019-1737\u003C\u002Fa>","10.1127\u002F0935-1221\u002F2007\u002F0019-1737",{"id":234,"year":235,"html":236,"doi":237},396430,2010,"Bindi, L., Pratesi, G., Spry, P. G. (2010) Crystallographic and chemical constraints on the nature of the proustite-pyrargyrite solid-solution series. \u003Ci>American Mineralogist\u003C\u002Fi>,  95 (11) 1725-1729 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam.2010.3563'>doi:10.2138\u002Fam.2010.3563\u003C\u002Fa>","10.2138\u002Fam.2010.3563",{"id":239,"year":240,"html":241,"doi":242},5262906,2016,"Guniya, N Yu; Castro, R A; Shadrin, E B (2016) Charge transport processes in proustite crystals Ag\u003Csub>3\u003C\u002Fsub>AsS\u003Csub>3\u003C\u002Fsub>. \u003Ci>Journal of Physics: Conference Series\u003C\u002Fi>,  690. 012009 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1088\u002F1742-6596\u002F690\u002F1\u002F012009'>doi:10.1088\u002F1742-6596\u002F690\u002F1\u002F012009\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Fiopscience.iop.org\u002Farticle\u002F10.1088\u002F1742-6596\u002F690\u002F1\u002F012009\u002Fpdf' class='refpdflink'>\u003C\u002Fa>","10.1088\u002F1742-6596\u002F690\u002F1\u002F012009",[244,254,261,271,278,286,293,301,308,317,323,330,335,341,347,354,363,370,376,382,391,399,408,415,421,429,436,441,448,456,463,469],{"id":245,"source_url":246,"license_code":247,"credit_html":248,"title":249,"description":250,"author":251,"original_width":252,"original_height":253},20041,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9607109","Public domain","Terry Wallace, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9607109\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Proustite (long prismatic crystal) - Chanarcillo, Copiapo Province, Atacama Region, Chile.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FProustite\" class=\"extiw\" title=\"en:Proustite\">Proustite\u003C\u002Fa> - Locality: Chañarcillo, Copiapó Province, Atacama Region, Chile - specimen height is 4 cm","Terry Wallace",673,1024,{"id":255,"source_url":256,"license_code":257,"credit_html":258,"title":7,"description":11,"author":11,"original_width":259,"original_height":260},30526,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F61923","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\u002F61923\" rel=\"noopener\">The Estonian Museum of Natural History\u003C\u002Fa> via Europeana",1000,750,{"id":262,"source_url":263,"license_code":264,"credit_html":265,"title":266,"description":267,"author":268,"original_width":269,"original_height":270},8886,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10429709","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10429709\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Proustite-d05-75b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FProustite\" class=\"extiw\" title=\"en:Proustite\">Proustite\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: cabinet, 10.5 x 5.4 x 5.2 cm\n\u003Cdl>\u003Cdt>Fettellite with Proustite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Fettellite is an extremely rare silver species. This is one of just a very few specimens to turn up at the Denver show amidst literally hundreds of proustites for sale, this is a huge and rich piece loaded with Fettelite ! The crystals form sharp blades to 3 mm and are easily eye-visible in larger clusters. The specimen could probably be broken up into a dozen pieces, each with both fettelite and proustite. 10.5 x 5.4 x 5.2 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",400,357,{"id":272,"source_url":273,"license_code":264,"credit_html":274,"title":275,"description":276,"author":268,"original_width":277,"original_height":269},20042,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141559","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141559\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Proustite-131889.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FProustite\" class=\"extiw\" title=\"en:Proustite\">Proustite\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: 4.5 x 3.2 x 2.5 cm.\u003C\u002Fdd>\n\u003Cdd>A rich chunk of matrix almost solidly composed of proustite (or maybe pyrargyrite) on which cherry-red crystals of proustite abound. Quite important and good in quality for the locality! Ex. Charlie Key Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",367,{"id":279,"source_url":280,"license_code":264,"credit_html":281,"title":282,"description":283,"author":268,"original_width":284,"original_height":285},20043,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10154699","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10154699\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Proustite-188167.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FProustite\" class=\"extiw\" title=\"en:Proustite\">Proustite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FP%C5%99%C3%ADbram\" class=\"extiw\" title=\"en:Příbram\">Příbram\u003C\u002Fa>, Central Bohemia Region, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBohemia\" class=\"extiw\" title=\"en:Bohemia\">Bohemia (Böhmen; Boehmen)\u003C\u002Fa>, Czech Republic (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-779.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 2.9 x 2.9 x 1.8 cm.\u003C\u002Fdd>\n\u003Cdd>A rich specimen of the silver mineral proustite - actually a gemmy bright red, but obviously you cannot see through this thick specimen to see the color.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",600,578,{"id":287,"source_url":288,"license_code":264,"credit_html":289,"title":290,"description":291,"author":268,"original_width":284,"original_height":292},20044,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10160383","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10160383\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Proustite-209739.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FProustite\" class=\"extiw\" title=\"en:Proustite\">Proustite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Dolores I Mine, 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-647.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 6.2 x 4.8 x 4.3 cm.\u003C\u002Fdd>\n\u003Cdd>Proustite from Chile sets the standard for sheer color, and metallic lustre, for the species. Specimens were mined generally prior to WWI with a peak in the late 1880s to early 1890s. Large specimens were sent out in particular through one mine engineer to museums around the world. Most larger specimens offer a tradeoff of color and richness vs. perfection. Here, we have massive, fat, gemmy crystals, but many of them are contacted or damaged. This piece, if you see the label here, seems to have been obtained in South America by the mineralogist Dr. Mark Bandy, who helped develop modern Bolivia's mining resources and was particularly important in obtaining and preserving mineralogical samples from the region. Although his collection resides in Los Angles County Museum today, it seems he donated or traded this piece to the Smithsonian Institution. Weighs 269 grams.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",521,{"id":294,"source_url":295,"license_code":264,"credit_html":296,"title":297,"description":298,"author":268,"original_width":299,"original_height":300},20045,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10173024","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10173024\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Proustite-284852.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FProustite\" class=\"extiw\" title=\"en:Proustite\">Proustite\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: 2.4 x 1.8 x 1.6 cm.\u003C\u002Fdd>\n\u003Cdd>A nearly solid cluster of lustrous and gemmy, ruby-red proustite microcrystals covers all sides of the bit of matrix on this excellent specimen from recent finds at the Imiter Mine of Morocco. This is a very fine representation of the species and locality of this sought-after silver sulfosalt. Rare in such rich specimens from this locale. Ex. Dr. Eric Asselborn Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",523,649,{"id":302,"source_url":303,"license_code":264,"credit_html":304,"title":305,"description":306,"author":268,"original_width":307,"original_height":284},20046,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10451172","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10451172\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Proustite-LTH24A.JPG","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FProustite\" class=\"extiw\" title=\"en:Proustite\">Proustite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Schlema, Schlema-Hartenstein 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-7626.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: thumbnail, 2.1 x .9 x .8 cm\n\u003Cdl>\u003Cdt>Proustite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>A fine, richly crystallized cluster of scintillating, \"ruby silver\" Proustite crystals from the famous Erzgebirge of Saxony, Germany. The gemmy, cherry-red color is aptly called \"ruby silver\". When backlit the piece shows a super, cherry-red color saturation and gemminess. The central crystal is about 1 cm in length, blocky, with excellent luster and the famous Proustite striations. Across the top, the gemmy, bladed crystal is about 7 mm long. A terrific, quality thumbnail. Ex. Georg Gebhard collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",329,{"id":309,"source_url":310,"license_code":264,"credit_html":311,"title":312,"description":313,"author":314,"original_width":315,"original_height":316},20048,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17575115","Géry PARENT, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17575115\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Proustite 4.jpg","proustite : Uchucchacua Mine, Oyon Province, Lima Department, Perù","Géry PARENT",4288,2848,{"id":318,"source_url":319,"license_code":264,"credit_html":320,"title":321,"description":267,"author":268,"original_width":284,"original_height":322},8885,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10429708","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10429708\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Proustite-d05-75a.jpg",396,{"id":324,"source_url":325,"license_code":264,"credit_html":326,"title":327,"description":328,"author":268,"original_width":269,"original_height":329},20052,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10461715","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10461715\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Proustite-rh02-52b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FProustite\" class=\"extiw\" title=\"en:Proustite\">Proustite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \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-7003.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 3.3 x 2.7 x 1.6 cm\n\u003Cdl>\u003Cdt>Proustite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Old German proustite from one of the classic silver mining districts of Europe. The specimen consists of a group of sharp, well formed crystals with a very nice metallic luster. The crystal have the typical deep red color noticeable behind the silvery surface. The group has no observable damage to any of the crystals and is complete 360 !\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",386,{"id":331,"source_url":332,"license_code":257,"credit_html":333,"title":110,"description":11,"author":11,"original_width":259,"original_height":334},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":336,"source_url":337,"license_code":264,"credit_html":338,"title":339,"description":340,"author":268,"original_width":269,"original_height":307},20047,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10453020","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10453020\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Calcite-Proustite-mf16b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalcite\" class=\"extiw\" title=\"en:Calcite\">Calcite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FProustite\" class=\"extiw\" title=\"en:Proustite\">Proustite\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: thumbnail, 3.0 x 2.0 x 1.9 cm\n\u003Cdl>\u003Cdt>Proustite with calcite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This exceptionally gemmy piece , with association of calcite, is from the famus finds of the late 1800s and such are very rare! it is a colorful and showy speciment hat is affordable and doesnt break the bank, given that it has some admitted damage between the major crystals and has been priced down accordingly. But, its show value is high and it remains a very rare specimen\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",{"id":140,"source_url":342,"license_code":264,"credit_html":343,"title":344,"description":345,"author":268,"original_width":284,"original_height":346},"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10124308","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10124308\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Argentopyrite-Proustite-34305.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentopyrite\" class=\"extiw\" title=\"en:Argentopyrite\">Argentopyrite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FProustite\" class=\"extiw\" title=\"en:Proustite\">Proustite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FJ%C3%A1chymov\" class=\"extiw\" title=\"en:Jáchymov\">Jáchymov (St Joachimsthal)\u003C\u002Fa>, Jáchymov (St Joachimsthal) District, Krušné Hory Mts (Erzgebirge), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKarlovy_Vary_Region\" class=\"extiw\" title=\"en:Karlovy Vary Region\">Karlovy Vary Region\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBohemia\" class=\"extiw\" title=\"en:Bohemia\">Bohemia (Böhmen; Boehmen)\u003C\u002Fa>, Czech Republic (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-777.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>This is an exceedingly rich specimen with good pedigree, containing about the most Argentopyrite you will ever see on one specimen. Argentopyrite is a rare silver species. What is particularly nice about this piece is that the crystallization is so rich it makes for a readily visible cluster of \"knobs\" so you don't have to look for the usual microcrystal or two. The association with gemmy red proustite crystals is an added bonus! 4.5 x 4.1 x 2 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",534,{"id":348,"source_url":349,"license_code":264,"credit_html":350,"title":351,"description":345,"author":268,"original_width":352,"original_height":353},1831,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10138001","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10138001\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Argentopyrite-Proustite-76623.jpg",565,516,{"id":355,"source_url":356,"license_code":264,"credit_html":357,"title":358,"description":359,"author":360,"original_width":361,"original_height":362},1833,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14867264","Leon Hupperichs, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14867264\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Argentopyrite-Proustite-266616.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArgentopyrite\" class=\"extiw\" title=\"en:Argentopyrite\">Argentopyrite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FProustite\" class=\"extiw\" title=\"en:Proustite\">Proustite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Sauberg Mine, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEhrenfriedersdorf\" class=\"extiw\" title=\"en:Ehrenfriedersdorf\">Ehrenfriedersdorf\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-13773.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Field of view 5mm. Specimen and photo Leon Hupperichs.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Leon Hupperichs",857,638,{"id":364,"source_url":365,"license_code":264,"credit_html":366,"title":367,"description":368,"author":268,"original_width":269,"original_height":369},8882,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10429704","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10429704\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Fettelite-Proustite-d05-74b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFettelite\" class=\"extiw\" title=\"en:Fettelite\">Fettelite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FProustite\" class=\"extiw\" title=\"en:Proustite\">Proustite\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, 7.6 x 5.4 x 5.2 cm\n\u003Cdl>\u003Cdt>Fettelite with Proustite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Fettellite is an extremely rare silver species. This is one of just a very few specimens to turn up at the Denver show amidst literally hundreds of proustites for sale, this is a huge and rich piece loaded with Fettelite ! The crystals form sharp blades to 3 mm and are easily eye-visible in larger clusters. The specimen could probably be broken up into a dozen pieces, each with both fettelite and proustite (i will do so if it doesn't sell whole) 7.6 x 5.4 x 5.2 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",322,{"id":371,"source_url":372,"license_code":264,"credit_html":373,"title":374,"description":368,"author":268,"original_width":269,"original_height":375},8883,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10429705","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10429705\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Fettelite-Proustite-d05-74c.jpg",350,{"id":377,"source_url":378,"license_code":264,"credit_html":379,"title":380,"description":368,"author":268,"original_width":284,"original_height":381},8884,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10429707","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10429707\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Fettelite-Proustite-d05-74a.jpg",519,{"id":383,"source_url":384,"license_code":264,"credit_html":385,"title":386,"description":387,"author":388,"original_width":389,"original_height":390},9643,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5186986","Ra'ike, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5186986\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Ganomatite with Proustite on Safflorite - Schlema-Hartenstein, Erzgebirge.jpg","Ganomatite (german synonym: \u003Ci>Gänsekötigerz\u003C\u002Fi>, mix of Pitticite and Chlorargyrite) with Proustite on Safflorite - Schlema-Hartenstein, Erzgebirge","Ra'ike",1450,1150,{"id":392,"source_url":393,"license_code":257,"credit_html":394,"title":395,"description":396,"author":397,"original_width":398,"original_height":284},10131,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=105455672","David Hospital, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=105455672\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Weishanite-proustite-pyrargyrite.jpg","Outstanding golden yellow crystals of the extremely rare Au, Ag, Hg natural alloy weishanite associated to red deep proustite and pyrargyrite. From: Homestake Claim, Creede, Mineral County, Colorado, United States of America. Ex Vandenbroucke Museum collection from Waregem, Belgium.","David Hospital",626,{"id":400,"source_url":401,"license_code":257,"credit_html":402,"title":403,"description":404,"author":405,"original_width":406,"original_height":407},10642,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=89143618","Thomas Binder, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=89143618\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Gustavit, Rotgülden (Lungau).jpg","Mineral Gustavit auf Pyrit, Bildhöhe 1,5 cm. Fundort: Rotgülden im Lungau, Salzburg, Österreich.","Thomas Binder",1166,1645,{"id":409,"source_url":410,"license_code":264,"credit_html":411,"title":412,"description":413,"author":268,"original_width":284,"original_height":414},12193,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177027","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177027\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Imiterite-Proustite-232918.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FImiterite\" class=\"extiw\" title=\"en:Imiterite\">Imiterite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FProustite\" class=\"extiw\" title=\"en:Proustite\">Proustite\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: 5.8 x 3.6 x 2.7 cm.\u003C\u002Fdd>\n\u003Cdd>This is a rare example of the silver-mercury sulfide discovered at this mine, the type locality. This specimen is loaded with lustrous elongated crystals, sub-mm but rich. Associated are minute bright red proustites, in abundance. A rare, validated example of this species. Ex. Bill Pinch Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",419,{"id":416,"source_url":417,"license_code":264,"credit_html":418,"title":419,"description":413,"author":268,"original_width":269,"original_height":420},12194,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177029","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177029\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Imiterite-Proustite-232920.jpg",383,{"id":422,"source_url":423,"license_code":264,"credit_html":424,"title":425,"description":426,"author":268,"original_width":427,"original_height":428},20049,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10137349","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10137349\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Proustite-69464.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FProustite\" class=\"extiw\" title=\"en:Proustite\">Proustite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FLower_Saxony\" class=\"extiw\" title=\"en:Lower Saxony\">Lower Saxony\u003C\u002Fa>, Germany (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-4395.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Old German proustite from one of the classic silver mining districts of Europe. The specimen consists of a group of sharp, well formed crystals with a very nice metallic luster. The crystal have the typical deep red color noticeable behind the silvery surface. The group has no observable damage to any of the crystals and is complete 360 ! 3.3 x 2.7 x 1.6 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",651,800,{"id":430,"source_url":431,"license_code":264,"credit_html":432,"title":433,"description":434,"author":268,"original_width":269,"original_height":435},20050,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10171679","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10171679\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Proustite-275154.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FProustite\" class=\"extiw\" title=\"en:Proustite\">Proustite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: 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-1832.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 2.6 x 0.6 x 0.6 cm\u003C\u002Fdd>\n\u003Cdd>(largest). Definitely old time specimens, this group of 9 individual, thumbnail size \"ruby silver\" Proustites, still emit their deep red color even when barely backlit. This is a wonderful set of sharp crystals of several different forms. The first photo shows the 4 largest specimens. Ex. Richard Hauck Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",313,{"id":437,"source_url":438,"license_code":264,"credit_html":439,"title":440,"description":328,"author":268,"original_width":427,"original_height":428},20051,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10461714","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10461714\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Proustite-rh02-52a.jpg",{"id":442,"source_url":443,"license_code":264,"credit_html":444,"title":445,"description":446,"author":268,"original_width":269,"original_height":447},20053,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10461869","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10461869\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Proustite-rh3-31b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FProustite\" class=\"extiw\" title=\"en:Proustite\">Proustite\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, 2.6 x 0.6 x 0.6\n\u003Cdl>\u003Cdt>Proustite (set of 9 xls)\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>1.0 x 0.4 x 0.3, 1.0 x 0.6 x 0.4 cm (4 largest) Definitely old time specimens, this group of individual, thumbnail size, \"ruby silver\" Proustites, still emit their deep red color even when barely backlit. This is a wonderful set of sharp crystals of several different forms! I valued only the top 4 pieces...the rest are freebies...\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",224,{"id":449,"source_url":450,"license_code":264,"credit_html":451,"title":452,"description":453,"author":268,"original_width":454,"original_height":455},20333,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10140258","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10140258\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Pyrostilpnite-Proustite-Arsenic-120757.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPyrostilpnite\" class=\"extiw\" title=\"en:Pyrostilpnite\">Pyrostilpnite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FProustite\" class=\"extiw\" title=\"en:Proustite\">Proustite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArsenic\" class=\"extiw\" title=\"en:Arsenic\">Arsenic\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FP%C5%99%C3%ADbram\" class=\"extiw\" title=\"en:Příbram\">Příbram\u003C\u002Fa>, Central Bohemia Region, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBohemia\" class=\"extiw\" title=\"en:Bohemia\">Bohemia (Böhmen; Boehmen)\u003C\u002Fa>, Czech Republic (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-779.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 5.3 x 4.3 x 2.8 cm.\u003C\u002Fdd>\n\u003Cdd>An excellent and showy Pribram reference specimen from the collection of the well-known Pribram specialist, Josef Vajdak. A 1 mm, gemmy, light red pyrostilpnite crystal, a rare sulfosalt, is nestled in a vug with lustrous, dark cherry-red, micro proustite crystals in a native arsenic matrix. The paper arrow shows the way to the vug. Ex. Petr Ondrus and Josef Vajdak Collections.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",550,314,{"id":457,"source_url":458,"license_code":264,"credit_html":459,"title":460,"description":453,"author":268,"original_width":461,"original_height":462},20334,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10140259","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10140259\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Pyrostilpnite-Proustite-Arsenic-120758.jpg",345,242,{"id":464,"source_url":465,"license_code":466,"credit_html":467,"title":7,"description":11,"author":11,"original_width":259,"original_height":468},31003,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F113151","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\u002F113151\" rel=\"noopener\">Department of Geology, TalTech\u003C\u002Fa> via Europeana",666,{"id":470,"source_url":471,"license_code":264,"credit_html":472,"title":473,"description":474,"author":475,"original_width":476,"original_height":477},60650,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5187032","Ra'ike (see also: de:Benutzer:Ra'ike), via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=5187032\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Imiterite with Proustite on Quartz - Imiter-Mine, Quarzazate, Marocco.jpg","Imiterite with Proustite on Quartz - Imiter-Mine, Quarzazate, Marocco","Ra'ike (see also: de:Benutzer:Ra'ike)",1600,1050,[479,485,491],{"id":480,"url":481,"label":482,"formula":483,"spacegroup":484,"year":199},11522,"\u002Fcif\u002F11522.cif","Allen 1985","Ag3 As S3","R 3 c",{"id":486,"url":487,"label":488,"formula":489,"spacegroup":484,"year":490},11525,"\u002Fcif\u002F11525.cif","Hocart 1937","As Ag3 S3",1937,{"id":492,"url":493,"label":494,"formula":489,"spacegroup":484,"year":495},11526,"\u002Fcif\u002F11526.cif","Harker 1936",1936,[497,498,499,500,501,502,503,504,505,506,507,508,509],"Argent rouge arsenicale","Argentum rudum rubrum","Arsenical Red Silver","Arsenical Silver Blende","Arseniksilberblende","Arsensilberblende","Durchsichtig Rodtguldenerz","Lichtes Rotgültigerz","Lichtes Rothgültigerz","Light red silver ore","Plata roja clara","Rosicler claro","Rotgülden",[511,515,519,523,528,531,535,539,543,547,550,553,557,561,565,569,573,576,579,583,587,590,594,597,602,606],{"lang":512,"names":513},"ar",[514],"بروستيت",{"lang":516,"names":517},"be",[518],"Прустыт",{"lang":520,"names":521},"ca",[522],"proustita",{"lang":524,"names":525},"de",[502,504,526,527],"Proustit","Rubinblende",{"lang":529,"names":530},"es",[522],{"lang":532,"names":533},"et",[534],"prustiit",{"lang":536,"names":537},"eu",[538],"Proustita",{"lang":540,"names":541},"fa",[542],"پروستیت",{"lang":544,"names":545},"fi",[546],"Proustiitti",{"lang":548,"names":549},"fr",[7],{"lang":551,"names":552},"it",[7],{"lang":554,"names":555},"ja",[556],"淡紅銀鉱",{"lang":558,"names":559},"ky",[560],"Прустит",{"lang":562,"names":563},"mk",[564],"простит",{"lang":566,"names":567},"nb",[568],"proustitt",{"lang":570,"names":571},"nl",[572],"proustiet",{"lang":574,"names":575},"nn",[568],{"lang":577,"names":578},"oc",[538],{"lang":580,"names":581},"pl",[582],"Proustyt",{"lang":584,"names":585},"ru",[586,560],"Мышьяковая серебряная обманка",{"lang":588,"names":589},"sk",[526],{"lang":591,"names":592},"sr",[593],"прустит",{"lang":595,"names":596},"sv",[526],{"lang":598,"names":599},"uk",[560,600,601],"Рубінова обманка","Рубінове срібло",{"lang":603,"names":604},"uz",[605],"Prustit",{"lang":607,"names":608},"zh",[609],"淡红银矿","Q411817",{"history":612,"applications":616},{"markdown":613,"model_version":614,"prompt_version":615,"reviewed_at":11},"Broken into thin slivers, this mineral glows a translucent ruby red — the colour that earned it the old miners' name *light ruby silver*[1]. It is the brighter, more transparent of two scarlet silver ores. The darker, more opaque one is pyrargyrite, the *dark ruby silver*, in which antimony stands where proustite holds arsenic[1].\n\nThe name honours the French chemist Joseph-Louis Proust, who lived from 1754 to 1826[2]. In 1804 his careful chemical analyses separated this arsenic-bearing silver ore from its antimony twin, telling the two ruby silvers apart for the first time[3]. Proust is best remembered for the law of definite proportions — the rule that a chemical compound always combines its elements in the same fixed ratio[2].\n\nThe mineral itself was named for him in 1832 by the French mineralogist François Sulpice Beudant[2]. The ending *-ite* marks it, in the modern fashion, as a mineral species in its own right.\n\nFor centuries before and after, miners dug it for one thing: the silver locked inside it[4]. Magnificent groups of large crystals came from Chañarcillo in Chile, and fine specimens from Freiberg and Marienberg in Saxony, from Joachimsthal in Bohemia, and from Sainte-Marie-aux-Mines in Alsace[5].","claude-opus-4-8","1.0.0",{"markdown":617,"model_version":614,"prompt_version":615,"reviewed_at":11},"Proustite is valued today first as an ore of silver — the metal makes up most of its weight, and where the mineral is abundant it is worked for that silver[1]. But its great brittleness and scarcity mean it is rarely a mine's main target. Its larger modern role is as a collector's mineral.\n\nA fine scarlet crystal is among the most prized objects a silver-mineral collector can own. High-quality crystals are sought by enthusiasts and command high prices, and museums display them for their aesthetic value[2].\\\nThat beauty comes with a catch. Proustite is photosensitive: its translucent red darkens to a dull, opaque grey-black under prolonged light[3]. Collectors and curators keep the finest specimens covered or stored in the dark, bringing them into the light only briefly[3].\n\nA purer use draws on the crystal's optics. Grown synthetically, proustite is transparent across a wide band of infrared — the invisible light just beyond red, used in heat sensing and laser work — roughly from 0.6 to 13 micrometres[4]. That transparency, paired with a strong nonlinear optical response, lets the crystal mix two light beams into a third of a different colour. It has been studied for converting long-wavelength infrared up into visible light, by laboratories including Hughes Research Laboratories, Bell Telephone Laboratories, and Britain's Royal Radar Establishment[4]."]