[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:1291":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":16,"elements":17,"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":28,"dana8ed2":32,"dana8ed3":33,"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":43,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":44,"tlform":11,"hmin":45,"hmax":42,"hardtype":11,"vhnmin":46,"vhnmax":47,"vhnerror":11,"vhng":48,"vhns":11,"commenthard":11,"dmeas":49,"dmeas2":49,"dcalc":50,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":51,"commentluster":11,"diapheny":52,"streak":53,"colour":54,"commentcolor":11,"colors":55,"streak_colors":59,"luminescence":11,"uv":60,"cleavage":61,"cleavagetype":62,"fracturetype":63,"tenacity":64,"commentbreak":11,"opticaltype":11,"opticalsign":11,"opticalalpha":40,"opticalalpha2":40,"opticalalphaerror":11,"opticalbeta":40,"opticalbeta2":40,"opticalbetaerror":11,"opticalgamma":40,"opticalgamma2":40,"opticalgammaerror":11,"opticalomega":40,"opticalomega2":40,"opticalomegaerror":11,"opticalepsilon":40,"opticalepsilon2":40,"opticalepsilonerror":11,"opticaln":40,"opticaln2":40,"opticalnerror":11,"optical2vcalc":40,"optical2vcalc2":40,"optical2vcalcerror":11,"optical2vmeasured":40,"optical2vmeasured2":40,"optical2vmeasurederror":11,"rimin":11,"rimax":11,"opticaldispersion":11,"opticalpleochroism":11,"opticalpleochorismdesc":11,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":65,"opticalinternal":11,"opticaltropic":66,"opticalanisotropism":67,"opticalbireflectance":11,"opticalextinction":11,"opticalr":68,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":69,"occurrence":11,"otheroccurrence":70,"type_specimen_store":71,"description_short":72,"aboutname":73,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":74,"reviewed_at":11,"variety_of":11,"varieties":75,"group_members":76,"associates":103,"confused_with":150,"type_localities":151,"occurrence_total":156,"citations":157,"images":230,"structures":417,"synonyms":446,"language_names":464,"wikidata_qid":526,"texts":527},1291,"1:1:1291:7","221e9fc3-3f1c-43d6-ae11-ee28b0219322","Digenite","Dg",0,"mineral",null,33145,3157,false,"Cu\u003Csub>9\u003C\u002Fsub>S\u003Csub>5\u003C\u002Fsub>","Cu\u003Csub>1.8\u003C\u002Fsub>S",[18,19],"Cu","S",[18,19],[18],"Fe","3.1.3",[25,26],"APPROVED","GRANDFATHERED","1844","2","B","A","10","4","7","3","Trigonal",13,99,"R-3 2\u002Fm","3.919","0","48.00",3,"Above 73°C, cubic with space group \u003Ci>Fm\u003C\u002Fi>-3\u003Ci>m\u003C\u002Fi>, \u003Ci>a\u003C\u002Fi> = 5.57 Å, Z = 4.","Pseudocubic crystals (rare) to 3 cm, usually as intergrowths with other copper sulphides. At temperatures below 81°C, digenite is trigonal R\u003Cmi>3\u003C\u002Fmi>m; above that temperature, digenite is isometric.",2.5,"86","106",100,"5.546","5.706","Metallic","Opaque","Greyish black","Grey to greyish black, turning bluish on exposure to air",[56,57,58],"gray","black","blue",[56,57],"Not fluorescent in UV","{111} on synthetic material","Distinct\u002FGood","Conchoidal","brittle","Bluish grey","Anisotropic","Mostly isotropic.","(29.6) 400,\r\n(28.8) 420,\r\n(28.0) 440,\r\n(27.0) 460,\r\n(25.9) 480,\r\n(24.8) 500,\r\n(23.5) 520,\r\n(22.2) 540,\r\n(21.0) 560,\r\n(19.9) 580,\r\n(18.9) 600,\r\n(18.0) 620,\r\n(17.2) 640,\r\n(16.3) 660,\r\n(15.5) 680,\r\n(14.8) 700","Copper ore","Hydrothermal copper deposits - both as primary and secondary mineral, mafic intrusives, exhalation product, pegmatites.","Technische Universität, Bergakademie Freiberg, Germany, number 1893 (holotype).","Note: Many of the reported associations of digenite and djurleite, identified by powder diffraction, could be anilite and djurleite, as anilite transforms to digenite during grinding.\r\n\r\nA recent study showed the existence of a complete solid-solution ...","Named in 1844 by August Breithaupt from Greek διγενηζ digenus = of two origins, because it is related to \u003Cm>chalcocite\u003C\u002Fm> and \u003Cm>covellite\u003C\u002Fm>","2025-11-26 18:42:38",[],[77,85,91,97],{"id":78,"name":79,"entrytype":9,"csystem":80,"ima_formula":81,"mindat_formula":81,"hmin":45,"hmax":42,"dmeas":82,"dcalc":83,"primary_image_id":84},962,"Chalcocite","Monoclinic","Cu\u003Csub>2\u003C\u002Fsub>S","5.5","5.8",5161,{"id":86,"name":87,"entrytype":9,"csystem":80,"ima_formula":88,"mindat_formula":88,"hmin":45,"hmax":42,"dmeas":40,"dcalc":89,"primary_image_id":90},1300,"Djurleite","Cu\u003Csub>31\u003C\u002Fsub>S\u003Csub>16\u003C\u002Fsub>","5.749",7291,{"id":92,"name":93,"entrytype":9,"csystem":94,"ima_formula":15,"mindat_formula":95,"hmin":45,"hmax":42,"dmeas":40,"dcalc":40,"primary_image_id":96},3468,"Roxbyite","Triclinic","Cu\u003Csub>58\u003C\u002Fsub>S\u003Csub>32\u003C\u002Fsub>",21236,{"id":98,"name":99,"entrytype":9,"csystem":35,"ima_formula":100,"mindat_formula":100,"hmin":45,"hmax":45,"dmeas":40,"dcalc":101,"primary_image_id":102},4354,"Yarrowite","Cu\u003Csub>9\u003C\u002Fsub>S\u003Csub>8\u003C\u002Fsub>","4.89",28479,[104,113,121,122,131,132,139,149],{"id":105,"name":106,"entrytype":9,"csystem":80,"ima_formula":107,"mindat_formula":108,"hmin":109,"hmax":109,"dmeas":110,"dcalc":111,"primary_image_id":112},496,"Balkanite","Ag\u003Csub>5\u003C\u002Fsub>Cu\u003Csub>9\u003C\u002Fsub>HgS\u003Csub>8\u003C\u002Fsub>","Cu\u003Csub>9\u003C\u002Fsub>Ag\u003Csub>5\u003C\u002Fsub>HgS\u003Csub>8\u003C\u002Fsub>",3.5,"6.318","6.421",2552,{"id":114,"name":115,"entrytype":9,"csystem":116,"ima_formula":117,"mindat_formula":117,"hmin":42,"hmax":42,"dmeas":118,"dcalc":119,"primary_image_id":120},727,"Bornite","Orthorhombic","Cu\u003Csub>5\u003C\u002Fsub>FeS\u003Csub>4\u003C\u002Fsub>","5.06","5.09",3648,{"id":78,"name":79,"entrytype":9,"csystem":80,"ima_formula":81,"mindat_formula":81,"hmin":45,"hmax":42,"dmeas":82,"dcalc":83,"primary_image_id":84},{"id":123,"name":124,"entrytype":9,"csystem":125,"ima_formula":126,"mindat_formula":126,"hmin":109,"hmax":127,"dmeas":128,"dcalc":129,"primary_image_id":130},955,"Chalcopyrite","Tetragonal","CuFeS\u003Csub>2\u003C\u002Fsub>",4,"4.1","4.18",29425,{"id":86,"name":87,"entrytype":9,"csystem":80,"ima_formula":88,"mindat_formula":88,"hmin":45,"hmax":42,"dmeas":40,"dcalc":89,"primary_image_id":90},{"id":133,"name":134,"entrytype":9,"csystem":125,"ima_formula":135,"mindat_formula":135,"hmin":42,"hmax":109,"dmeas":136,"dcalc":137,"primary_image_id":138},1644,"Gallite","CuGaS\u003Csub>2\u003C\u002Fsub>","4.2","4.35",9613,{"id":140,"name":141,"entrytype":9,"csystem":142,"ima_formula":143,"mindat_formula":143,"hmin":144,"hmax":145,"dmeas":146,"dcalc":147,"primary_image_id":148},3314,"Pyrite","Isometric","FeS\u003Csub>2\u003C\u002Fsub>",6,6.5,"4.8","5.01",20239,{"id":98,"name":99,"entrytype":9,"csystem":35,"ima_formula":100,"mindat_formula":100,"hmin":45,"hmax":45,"dmeas":40,"dcalc":101,"primary_image_id":102},[],[152],{"id":153,"txt":154,"latitude":11,"longitude":11,"country":155},1896,"Copper slate deposits, Sangerhausen, Mansfeld-Südharz, Saxony-Anhalt, Germany","Germany",1145,[158,163,167,171,175,179,184,188,192,196,201,206,211,215,220,225],{"id":159,"year":160,"html":161,"doi":162},4459595,1844,"Breithaupt, August (1844) Zwei neue Kupfer enthaltende Mineralien aus der Ordnung der Glanze. \u003Ci>Annalen der Physik und Chemie\u003C\u002Fi>, 137. 671-675 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1002\u002Fandp.18441370409'>doi:10.1002\u002Fandp.18441370409\u003C\u002Fa>","10.1002\u002Fandp.18441370409",{"id":164,"year":165,"html":166,"doi":11},521299,1942,"Buerger, Newton W. (1942) X-ray evidence for the existence of the mineral digenite, Cu9S5. \u003Ci>American Mineralogist\u003C\u002Fi>,  27 (10) 712-716 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM27\u002FAM27_712.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":168,"year":169,"html":170,"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":172,"year":173,"html":174,"doi":11},523027,1958,"Dormay, Gabrielle, Donnay, J. D. H., Kullerud, G. (1958) Crystal and twin structure of digenite, Cu9S5. \u003Ci>American Mineralogist\u003C\u002Fi>,  43 (3-4) 228-242 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM43\u002FAM43_228.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":176,"year":177,"html":178,"doi":11},523836,1963,"Morimoto, N., Kullerud, G. (1963) Polymorphism in digenite. \u003Ci>American Mineralogist\u003C\u002Fi>,  48 (1-2) 110-123 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM48\u002FAM48_110.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":180,"year":181,"html":182,"doi":183},401449,1964,"Oosterbosch, Robert; Picot, Paul; Pierrot, Roland (1964) La digénite sélénifère de Musonoï (Katanga). \u003Ci>Bulletin de Minéralogie\u003C\u002Fi>,  87 (4). 613-617 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3406\u002Fbulmi.1964.5781'>doi:10.3406\u002Fbulmi.1964.5781\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Fwww.persee.fr\u002Fdoc\u002Fbulmi_0037-9328_1964_num_87_4_5781?pdf' class='refpdflink'>\u003C\u002Fa>","10.3406\u002Fbulmi.1964.5781",{"id":185,"year":186,"html":187,"doi":11},525742,1971,"Morimoto, Nobuo, Gyobu, Atsuo (1971) The composition and stability of digenite. \u003Ci>American Mineralogist\u003C\u002Fi>,  56 (11-12) 1889-1909 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM56\u002FAM56_1889.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":189,"year":190,"html":191,"doi":11},527442,1980,"Gronvold, Fredrik, Westrum, Edgar F. (1980) The anilite\u002Flow-digenite transition. \u003Ci>American Mineralogist\u003C\u002Fi>,  65 (5-6) 574-575 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM65\u002FAM65_574.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":193,"year":194,"html":195,"doi":11},529619,1994,"Posfai, Mihaly, Buseck, Peter R. (1994) Djurleite, digenite, and chalcocite: Intergrowths and transformations. \u003Ci>American Mineralogist\u003C\u002Fi>,  79 (3-4) 308-315 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM79\u002FAM79_308.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":197,"year":198,"html":199,"doi":200},14277337,1998,"Schmidt, JA, Sagua, A.E, Lescano, G (1998) Electrochemical investigation of the equilibria (covellite + anilite) and (covellite + digenite) \u003Ci>The Journal of Chemical Thermodynamics\u003C\u002Fi>, 30 (3) 283-290 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1006\u002Fjcht.1997.0287'>doi:10.1006\u002Fjcht.1997.0287\u003C\u002Fa>","10.1006\u002Fjcht.1997.0287",{"id":202,"year":203,"html":204,"doi":205},243163,2000,"Grguric, B. A., Harrison, R. J., Putnis, A. (2000) A revised phase diagram for the bornite-digenite join from \u003Ci>in situ\u003C\u002Fi> neutron diffraction and DSC experiments. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  64 (2) 213-231 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002F002646100549319'>doi:10.1180\u002F002646100549319\u003C\u002Fa>","10.1180\u002F002646100549319",{"id":207,"year":208,"html":209,"doi":210},128118,2002,"Will, Georg, Hinze, Ekkehard, Abdelrahman, Abdel Rahman M. (2002) Crystal structure analysis and refinement of digenite, Cu1.8S, in the temperature range 20 to 500 C under controlled sulfur partial pressure. \u003Ci>European Journal of Mineralogy\u003C\u002Fi>,  14 (3) 591-598 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1127\u002F0935-1221\u002F2002\u002F0014-0591'>doi:10.1127\u002F0935-1221\u002F2002\u002F0014-0591\u003C\u002Fa>","10.1127\u002F0935-1221\u002F2002\u002F0014-0591",{"id":212,"year":213,"html":214,"doi":11},16963986,2005,"(2005) Digenite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fdigenite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":216,"year":217,"html":218,"doi":219},64496,2008,"Pirard, C., Hatert, F. (2008) The sufides and selenides of the Musonoi Mine, Kolwezi, Katanga, Democratic Republic of Congo. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  46 (1) 219-231 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3749\u002Fcanmin.46.1.219'>doi:10.3749\u002Fcanmin.46.1.219\u003C\u002Fa>","10.3749\u002Fcanmin.46.1.219",{"id":221,"year":222,"html":223,"doi":224},3047687,2017,"Zhao, Jing, Brugger, Joël, Grguric, Benjamin A., Ngothai, Yung, Pring, Allan (2017) Fluid-Enhanced Coarsening of Mineral Microstructures in Hydrothermally Synthesized Bornite–Digenite Solid Solution. \u003Ci>ACS Earth and Space Chemistry\u003C\u002Fi>,  1 (8) 465-474 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1021\u002Facsearthspacechem.7b00034'>doi:10.1021\u002Facsearthspacechem.7b00034\u003C\u002Fa>","10.1021\u002Facsearthspacechem.7b00034",{"id":226,"year":227,"html":228,"doi":229},157692,2018,"Li, Kan, Brugger, JoëL, Pring, Allan (2018) Exsolution of chalcopyrite from bornite-digenite solid solution: an example of a fluid-driven back-replacement reaction. \u003Ci>Mineralium Deposita\u003C\u002Fi>,  53 (7) 903-908 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fs00126-018-0820-6'>doi:10.1007\u002Fs00126-018-0820-6\u003C\u002Fa>","10.1007\u002Fs00126-018-0820-6",[231,241,251,259,269,278,286,294,303,309,315,323,329,335,345,353,360,366,373,381,389,397,404,411],{"id":232,"source_url":233,"license_code":234,"credit_html":235,"title":236,"description":237,"author":238,"original_width":239,"original_height":240},7221,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9688879","Public domain","Strickja, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9688879\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Digenite.jpg","Digenite from the East Colusa Mine, Butte, Montana, USA.  Specimen size 4.3 cm","Strickja",1774,1279,{"id":242,"source_url":243,"license_code":244,"credit_html":245,"title":246,"description":247,"author":248,"original_width":249,"original_height":250},7222,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10438624","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10438624\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Digenite-sea57a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDigenite\" class=\"extiw\" title=\"en:Digenite\">Digenite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FButte\" class=\"extiw\" title=\"en:Butte\">Butte\u003C\u002Fa>, Butte District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSilver_Bow_County,_Montana\" class=\"extiw\" title=\"en:Silver Bow County, Montana\">Silver Bow County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMontana\" class=\"extiw\" title=\"en:Montana\">Montana\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3873.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: thumbnail, 1.7 x 1.2 x 0.4 cm\n\u003Cdl>\u003Cdt>Digenite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>A very sharp single crystal thumbnail specimen of this classic sulfide from Butte. Ex. John White Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",712,511,{"id":252,"source_url":253,"license_code":244,"credit_html":254,"title":255,"description":256,"author":248,"original_width":257,"original_height":258},7223,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=15525409","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=15525409\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Digenite-331292.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDigenite\" class=\"extiw\" title=\"en:Digenite\">Digenite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FButte\" class=\"extiw\" title=\"en:Butte\">Butte\u003C\u002Fa>, Butte District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSilver_Bow_County,_Montana\" class=\"extiw\" title=\"en:Silver Bow County, Montana\">Silver Bow County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMontana\" class=\"extiw\" title=\"en:Montana\">Montana\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3873.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>4.2 x 3.8 x 2.2 cm. The world's finest crystallized digenite specimens have undoubtedly come from the famous mines at Butte and this is an excellent example from the Larry Krause Collection. The sculptural miniature is an intergrown cluster of sharp, moderately lustrous and lightly iridescent, dark-gray digenite crystals with typical rounded ends and terminations. The crystals have a green tint from a copper oxide coating or scattered bits of malachite. Essentially solid digenite, with only a bit of bornite and chalcopyrite on the back. Classic and highly representative material from this noted locale.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",465,443,{"id":260,"source_url":261,"license_code":262,"credit_html":263,"title":264,"description":265,"author":266,"original_width":267,"original_height":268},7224,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=152148262","CC BY 3.0","Kelly Nash, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=152148262\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Digenite-729754.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDigenite\" class=\"extiw\" title=\"en:Digenite\">Digenite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Dimensions: ~6 cm tall\u003C\u002Fdd>\n\u003Cdd>Locality: Leonard Mine, Butte Mining District (Summit Valley Mining District), Silver Bow County, Montana, USA\u003C\u002Fdd>\n\u003Cdd>Description: Cluster of digenite crystals, Smithsonian Mineral Collection (No. 150222, look at \u003Ca rel=\"nofollow\" class=\"external text\" href=\"https:\u002F\u002Fwww.mindat.org\u002Fphoto-701543.html\">Full recording on mindat\u003C\u002Fa>). Display specimen at the National Museum of Natural History, Washington, D.C., photographed January 30, 2016.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Kelly Nash",1208,1960,{"id":270,"source_url":271,"license_code":262,"credit_html":272,"title":273,"description":274,"author":275,"original_width":276,"original_height":277},7225,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=152148723","John Sobolewski (JSS), via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=152148723\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Digenite-1283051.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDigenite\" class=\"extiw\" title=\"en:Digenite\">Digenite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>\u003Ci>Dimensions:\u003C\u002Fi> 40 mm x 36 mm x 18 mm\u003C\u002Fdd>\n\u003Cdd>\u003Ci>Locality:\u003C\u002Fi> Leonard Mine, Butte Mining District (Summit Valley Mining District), Silver Bow County, Montana, USA\u003C\u002Fdd>\n\u003Cdd>\u003Ci>Description:\u003C\u002Fi> Digenite with a slight bluish tarnish with some pyrite crystals on a white quartz. JSS specimen and photo. Obtained decades ago from the Montana Tech. Mineral Museum in Butte.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","John Sobolewski (JSS)",718,704,{"id":279,"source_url":280,"license_code":262,"credit_html":281,"title":282,"description":283,"author":275,"original_width":284,"original_height":285},7226,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=152148867","John Sobolewski (JSS), via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=152148867\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Digenite-1307622.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDigenite\" class=\"extiw\" title=\"en:Digenite\">Digenite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>\u003Ci>Dimensions:\u003C\u002Fi> 37 mm x 29 mm x 15 mm\u003C\u002Fdd>\n\u003Cdd>\u003Ci>Locality:\u003C\u002Fi> Leonard Mine, Butte Mining District (Summit Valley Mining District), Silver Bow County, Montana, USA\u003C\u002Fdd>\n\u003Cdd>\u003Ci>Description:\u003C\u002Fi> Digenite crystals on pyrite. JSS specimen and photo.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",965,723,{"id":287,"source_url":288,"license_code":244,"credit_html":289,"title":290,"description":291,"author":248,"original_width":292,"original_height":293},52442,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10438659","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10438659\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Digenite-sea66c.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDigenite\" class=\"extiw\" title=\"en:Digenite\">Digenite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FButte\" class=\"extiw\" title=\"en:Butte\">Butte\u003C\u002Fa>, Butte District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSilver_Bow_County,_Montana\" class=\"extiw\" title=\"en:Silver Bow County, Montana\">Silver Bow County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMontana\" class=\"extiw\" title=\"en:Montana\">Montana\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3873.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 4 x 3.3 x 1.2 cm\n\u003Cdl>\u003Cdt>Digenite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This is a huge single crystal of digenite, one of the rarer copper sulfides in crystalline form. Butte was known for these 50 years ago, but crystals of this caliber and size are now hard to come by. It has a wonderful form, and a classic dull matte lustre (distinct from chalcocite from this locality). Ex. John White Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",800,737,{"id":295,"source_url":296,"license_code":234,"credit_html":297,"title":298,"description":299,"author":300,"original_width":301,"original_height":302},7227,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=152149027","Juan González, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=152149027\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Digenite-1335522.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDigenite\" class=\"extiw\" title=\"en:Digenite\">Digenite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Dimensions: 85 mm × 61 mm × 42 mm\u003C\u002Fdd>\n\u003Cdd>Locality: Leonard Mine, Butte Mining District (Summit Valley Mining District), Silver Bow County, Montana, USA\u003C\u002Fdd>\n\u003Cdd>Description: Ex-Joseph Mitchell collection, USA. Dense piece of Digenite. It is partially covered with a layer of Pyrite that was surely formed by filling fissures that surrounded it.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Juan González",2297,1938,{"id":304,"source_url":305,"license_code":244,"credit_html":306,"title":307,"description":291,"author":248,"original_width":292,"original_height":308},52443,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10438663","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10438663\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Digenite-sea66b.jpg",798,{"id":310,"source_url":311,"license_code":244,"credit_html":312,"title":313,"description":291,"author":248,"original_width":314,"original_height":292},52444,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10438667","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10438667\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Digenite-sea66a.jpg",634,{"id":316,"source_url":317,"license_code":244,"credit_html":318,"title":319,"description":320,"author":248,"original_width":321,"original_height":322},52445,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=15525369","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=15525369\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Digenite-307120.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDigenite\" class=\"extiw\" title=\"en:Digenite\">Digenite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FButte\" class=\"extiw\" title=\"en:Butte\">Butte\u003C\u002Fa>, Butte District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSilver_Bow_County,_Montana\" class=\"extiw\" title=\"en:Silver Bow County, Montana\">Silver Bow County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMontana\" class=\"extiw\" title=\"en:Montana\">Montana\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3873.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>2.9 x 1.2 x 1.1 cm. The world's finest crystallized digenite specimens have undoubtedly come from the famous mines at Butte and this is an outstanding example from the Carlton Davis Collection. This fantastic, club-shaped toenail is an intergrown cluster of sharp, highly lustrous and lightly iridescent, jet-black digenite crystals with typical rounded ends and terminations. The crystals have a green tint from a copper oxide coating. Complete-all-around and a near floater, having only a small attachment point on the club head. Classic and superb material from this noted locale.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",419,600,{"id":324,"source_url":325,"license_code":244,"credit_html":326,"title":327,"description":256,"author":248,"original_width":257,"original_height":328},52446,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=15525410","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=15525410\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Digenite-331293.jpg",357,{"id":330,"source_url":331,"license_code":244,"credit_html":332,"title":333,"description":256,"author":248,"original_width":257,"original_height":334},52447,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=15525411","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=15525411\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Digenite-331294.jpg",397,{"id":336,"source_url":337,"license_code":338,"credit_html":339,"title":340,"description":341,"author":342,"original_width":343,"original_height":344},52450,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=97564971","CC BY 2.0","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=97564971\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Digenite (latest Cretaceous to earliest Tertiary, 62-66 Ma; Leonard Mine, Butte, Montana, USA) 7.jpg","Digenite-rich hydrothermal vein sample from Montana, USA.\n\u003Cp>A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties.  At its simplest, a mineral is a naturally-occurring solid chemical.  Currently, there are over 5600 named and described minerals - about 200 of them are common and about 20 of them are very common.  Mineral classification is based on anion chemistry.  Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.\n\u003C\u002Fp>\u003Cp>The sulfide minerals contain one or more sulfide anions (S-2).  The sulfides are usually considered together with the arsenide minerals, the sulfarsenide minerals, and the telluride minerals.  Many sulfides are economically significant, as they occur commonly in ores.  The metals that combine with S-2 are mainly Fe, Cu, Ni, Ag, etc.  Most sulfides have a metallic luster, are moderately soft, and are noticeably heavy for their size.  These minerals will not form in the presence of free oxygen.  Under an oxygen-rich atmosphere, sulfide minerals tend to chemically weather to various oxide and hydroxide minerals.\n\u003C\u002Fp>\u003Cp>Digenite is a scarce copper sulfide mineral, Cu9S5.  It has a metallic luster, dark bluish-gray to blackish color, dark gray streak, and a Mohs hardness of 2.5 to 3.  It’s usually massive, but can form pseudocubic crystals.  Broken surfaces show conchoidal fracture.  Primary digenite occurs in some copper-bearing hydrothermal veins, some intrusive igneous rocks, and in some sulfide exhalative deposits.\n\u003C\u002Fp>\u003Cp>The digenite sample seen here is from Montana's Butte Mining District.  In this area, digenite occurs in 62 to 66 million year old copper sulfide-rich hydrothermal veins that intrude the Butte Quartz Monzonite, a pluton of the Boulder Batholith (mid-Campanian Stage, late Late Cretaceous, 76 million years).\n\u003C\u002Fp>\u003Cp>Locality: Leonard Mine, Butte Mining District, Silver Bow County, southwestern Montana, USA\n\u003C\u002Fp>\n\u003Chr>\n\u003Cp>Photo gallery of digenite:\n\u003C\u002Fp>\nwww.mindat.org\u002Fgallery.php?min=1291","James St. John",2044,1910,{"id":346,"source_url":347,"license_code":338,"credit_html":348,"title":349,"description":350,"author":342,"original_width":351,"original_height":352},52452,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=97564978","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=97564978\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Digenite (latest Cretaceous to earliest Tertiary, 62-66 Ma; Leonard Mine, Butte, Montana, USA) 3.jpg","Digenite-rich hydrothermal vein sample from Montana, USA. (2.25 centimeters across along its base)\n\u003Cp>A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties.  At its simplest, a mineral is a naturally-occurring solid chemical.  Currently, there are over 5600 named and described minerals - about 200 of them are common and about 20 of them are very common.  Mineral classification is based on anion chemistry.  Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.\n\u003C\u002Fp>\u003Cp>The sulfide minerals contain one or more sulfide anions (S-2).  The sulfides are usually considered together with the arsenide minerals, the sulfarsenide minerals, and the telluride minerals.  Many sulfides are economically significant, as they occur commonly in ores.  The metals that combine with S-2 are mainly Fe, Cu, Ni, Ag, etc.  Most sulfides have a metallic luster, are moderately soft, and are noticeably heavy for their size.  These minerals will not form in the presence of free oxygen.  Under an oxygen-rich atmosphere, sulfide minerals tend to chemically weather to various oxide and hydroxide minerals.\n\u003C\u002Fp>\u003Cp>Digenite is a scarce copper sulfide mineral, Cu9S5.  It has a metallic luster, dark bluish-gray to blackish color, dark gray streak, and a Mohs hardness of 2.5 to 3.  It’s usually massive, but can form pseudocubic crystals.  Broken surfaces show conchoidal fracture.  Primary digenite occurs in some copper-bearing hydrothermal veins, some intrusive igneous rocks, and in some sulfide exhalative deposits.\n\u003C\u002Fp>\u003Cp>The digenite sample seen here is from Montana's Butte Mining District.  In this area, digenite occurs in 62 to 66 million year old copper sulfide-rich hydrothermal veins that intrude the Butte Quartz Monzonite, a pluton of the Boulder Batholith (mid-Campanian Stage, late Late Cretaceous, 76 million years).\n\u003C\u002Fp>\u003Cp>Locality: Leonard Mine, Butte Mining District, Silver Bow County, southwestern Montana, USA\n\u003C\u002Fp>\n\u003Chr>\n\u003Cp>Photo gallery of digenite:\n\u003C\u002Fp>\nwww.mindat.org\u002Fgallery.php?min=1291",1395,921,{"id":354,"source_url":355,"license_code":234,"credit_html":356,"title":357,"description":299,"author":300,"original_width":358,"original_height":359},52454,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=152149051","Juan González, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=152149051\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Digenite-1335523.jpg",2265,1914,{"id":361,"source_url":362,"license_code":244,"credit_html":363,"title":364,"description":247,"author":248,"original_width":365,"original_height":314},5168,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10438618","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10438618\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Digenite-sea57b.jpg",789,{"id":367,"source_url":368,"license_code":244,"credit_html":369,"title":370,"description":371,"author":248,"original_width":292,"original_height":372},7012,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10161221","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10161221\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Demesmaekerite-Guilleminite-Digenite-214946.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDemesmaekerite\" class=\"extiw\" title=\"en:Demesmaekerite\">Demesmaekerite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGuilleminite\" class=\"extiw\" title=\"en:Guilleminite\">Guilleminite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDigenite\" class=\"extiw\" title=\"en:Digenite\">Digenite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Musonoi Mine, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKolwezi\" class=\"extiw\" title=\"en:Kolwezi\">Kolwezi\u003C\u002Fa>, Western area, Katanga Copper Crescent, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKatanga\" class=\"extiw\" title=\"en:Katanga\">Katanga (Shaba)\u003C\u002Fa>, Democratic Republic of Congo (Zaïre) (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-4322.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 4.1 x 3.1 x 2.4 cm.\u003C\u002Fdd>\n\u003Cdd>An interesting combination specimen hosting two very rare selenites, Demesmaekerite and yellow Guilleminite. The Guilleminite is micro crystalline but the Demesmaekerite is present in well formed crystals: Some are free standing and reaching 1 mm. The combination is almost unheard of. The matrix is composed of Malachite and Selenium-rich Digenite. This mineral is the source of the selenites in Musonoi. This specimen was recovered during the removal of the U-dump in the early 1990’s. Musonoi has ceased producing minerals since then. Note that Musonoi is the type locality for both species.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",613,{"id":374,"source_url":375,"license_code":244,"credit_html":376,"title":377,"description":378,"author":248,"original_width":379,"original_height":380},7015,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10457526","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10457526\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Demesmaekerite-Digenite-Guilleminite-rads-31a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDemesmaekerite\" class=\"extiw\" title=\"en:Demesmaekerite\">Demesmaekerite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDigenite\" class=\"extiw\" title=\"en:Digenite\">Digenite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGuilleminite\" class=\"extiw\" title=\"en:Guilleminite\">Guilleminite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSelenium\" class=\"extiw\" title=\"en:Selenium\">Selenium\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Musonoi Mine, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKolwezi\" class=\"extiw\" title=\"en:Kolwezi\">Kolwezi\u003C\u002Fa>, Western area, Katanga Copper Crescent, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKatanga\" class=\"extiw\" title=\"en:Katanga\">Katanga (Shaba)\u003C\u002Fa>, Democratic Republic of Congo (Zaïre) (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-4322.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 4.1 x 3.1 x 2.4 cm\n\u003Cdl>\u003Cdt>Demesmaekerite with Guilleminite on Selenium-rich Digenite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Interesting combo specimen which hosts two very rare selenites, Demesmaekerite and yellow Guilleminite. The Guilleminite is micro crystalline but the Demesmaekerite is present in well formed crystals: Some are free standing and reaching 1 mm. The combination is almost unheard of. The matrix is composed of Malachite and Selenium-rich Digenite. This mineral is the source of the selenites in Musonoi. This specimen was recovered during the removal of the U-dump in the early 90�s. Musonoi has ceased producing minerals since then. NOTE THAT Musonoi is the TYPE LOCALITY for BOTH species.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",400,300,{"id":382,"source_url":383,"license_code":338,"credit_html":384,"title":385,"description":386,"author":342,"original_width":387,"original_height":388},52448,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=40914503","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=40914503\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Digenite-pyrite, Butte Mining District, Montana.jpg","\u003Cp>Digenite-pyrite hydrothermal vein sample from Montana, USA. (SDSMT 2125, South Dakota School of Mines and Technology Museum of Geology, Rapid City, South Dakota, USA)\n\u003C\u002Fp>\u003Cp>Very dark blue = digenite\nBrassy gold = pyrite\n\u003C\u002Fp>\u003Cp>A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties.  At its simplest, a mineral is a naturally-occurring solid chemical.  Currently, there are over 4900 named and described minerals - about 200 of them are common and about 20 of them are very common.  Mineral classification is based on anion chemistry.  Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.\n\u003C\u002Fp>\u003Cp>The sulfide minerals contain one or more sulfide anions (S-2).  The sulfides are usually considered together with the arsenide minerals, the sulfarsenide minerals, and the telluride minerals.  Many sulfides are economically significant, as they occur commonly in ores.  The metals that combine with S-2 are mainly Fe, Cu, Ni, Ag, etc.  Most sulfides have a metallic luster, are moderately soft, and are noticeably heavy for their size.  These minerals will not form in the presence of free oxygen.  Under an oxygen-rich atmosphere, sulfide minerals tend to chemically weather to various oxide and hydroxide minerals.\n\u003C\u002Fp>\u003Cp>Digenite is a scarce copper sulfide mineral, Cu9S5.  It has a metallic luster, dark bluish-gray to blackish color, dark gray streak, and a Mohs hardness of 2.5 to 3.  It’s usually massive, but can form pseudocubic crystals.  Broken surfaces show conchoidal fracture.  Primary digenite occurs in some copper-bearing hydrothermal veins, some intrusive igneous rocks, and in some sulfide exhalative deposits.\n\u003C\u002Fp>\u003Cp>The digenite sample shown above is from Montana's Butte Mining District.  In this area, digenite occurs in 62 to 66 million year old copper sulfide-rich hydrothermal veins that intrude the Butte Quartz Monzonite, a pluton of the Boulder Batholith (mid-Campanian Stage, late Late Cretaceous, 76 million years).\n\u003C\u002Fp>\u003Cp>Locality: Butte Mining District, Silver Bow County, southwestern Montana, USA\n\u003C\u002Fp>\n\u003Chr>\n\u003Cp>Photo gallery of digenite:\n\u003C\u002Fp>\n\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Fgallery.php?min=1291\">www.mindat.org\u002Fgallery.php?min=1291\u003C\u002Fa>",2192,1578,{"id":390,"source_url":391,"license_code":338,"credit_html":392,"title":393,"description":394,"author":342,"original_width":395,"original_height":396},52449,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=97564966","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=97564966\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Digenite-pyrite (latest Cretaceous to earliest Tertiary, 62-66 Ma; Leonard Mine, Butte, Montana, USA) 11.jpg","Digenite-pyrite hydrothermal vein sample from Montana, USA.\n\u003Cp>A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties.  At its simplest, a mineral is a naturally-occurring solid chemical.  Currently, there are over 5600 named and described minerals - about 200 of them are common and about 20 of them are very common.  Mineral classification is based on anion chemistry.  Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.\n\u003C\u002Fp>\u003Cp>The sulfide minerals contain one or more sulfide anions (S-2).  The sulfides are usually considered together with the arsenide minerals, the sulfarsenide minerals, and the telluride minerals.  Many sulfides are economically significant, as they occur commonly in ores.  The metals that combine with S-2 are mainly Fe, Cu, Ni, Ag, etc.  Most sulfides have a metallic luster, are moderately soft, and are noticeably heavy for their size.  These minerals will not form in the presence of free oxygen.  Under an oxygen-rich atmosphere, sulfide minerals tend to chemically weather to various oxide and hydroxide minerals.\n\u003C\u002Fp>\u003Cp>Digenite is a scarce copper sulfide mineral, Cu9S5.  It has a metallic luster, dark bluish-gray to blackish color, dark gray streak, and a Mohs hardness of 2.5 to 3.  It’s usually massive, but can form pseudocubic crystals.  Broken surfaces show conchoidal fracture.  Primary digenite occurs in some copper-bearing hydrothermal veins, some intrusive igneous rocks, and in some sulfide exhalative deposits.\n\u003C\u002Fp>\u003Cp>The digenite sample seen here is from Montana's Butte Mining District.  In this area, digenite occurs in 62 to 66 million year old copper sulfide-rich hydrothermal veins that intrude the Butte Quartz Monzonite, a pluton of the Boulder Batholith (mid-Campanian Stage, late Late Cretaceous, 76 million years).\n\u003C\u002Fp>\u003Cp>Locality: Leonard Mine, Butte Mining District, Silver Bow County, southwestern Montana, USA\n\u003C\u002Fp>\n\u003Chr>\n\u003Cp>Photo gallery of digenite:\n\u003C\u002Fp>\nwww.mindat.org\u002Fgallery.php?min=1291",2236,2038,{"id":398,"source_url":399,"license_code":338,"credit_html":400,"title":401,"description":394,"author":342,"original_width":402,"original_height":403},52451,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=97564974","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=97564974\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Digenite-pyrite (latest Cretaceous to earliest Tertiary, 62-66 Ma; Leonard Mine, Butte, Montana, USA) 9.jpg",2088,1678,{"id":405,"source_url":406,"license_code":338,"credit_html":407,"title":408,"description":394,"author":342,"original_width":409,"original_height":410},52453,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=97564986","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=97564986\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Digenite-pyrite (latest Cretaceous to earliest Tertiary, 62-66 Ma; Leonard Mine, Butte, Montana, USA) 6.jpg",1972,2296,{"id":412,"source_url":413,"license_code":244,"credit_html":414,"title":415,"description":371,"author":248,"original_width":292,"original_height":416},7013,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10161223","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10161223\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Demesmaekerite-Guilleminite-Digenite-214947.jpg",701,[418,424,429,435,440],{"id":419,"url":420,"label":421,"formula":422,"spacegroup":423,"year":208},3691,"\u002Fcif\u002F3691.cif","Will 2002 · S Cu1.798","S Cu1.798","F m 3 m",{"id":425,"url":426,"label":427,"formula":428,"spacegroup":423,"year":208},3693,"\u002Fcif\u002F3693.cif","Will 2002 · S Cu1.997","S Cu1.997",{"id":430,"url":431,"label":432,"formula":433,"spacegroup":423,"year":434},3694,"\u002Fcif\u002F3694.cif","Yamamoto 1991","Cu1.84 S",1991,{"id":436,"url":437,"label":438,"formula":439,"spacegroup":423,"year":177},3696,"\u002Fcif\u002F3696.cif","Morimoto 1963","Cu1.8 S",{"id":441,"url":442,"label":443,"formula":444,"spacegroup":445,"year":173},3697,"\u002Fcif\u002F3697.cif","Donnay 1958","Cu17 S9","R -3 m",[447,448,449,450,451,452,453,454,455,456,457,458,459,460,461,462,463],"Alpha chalcocite","Blauer Chalkosin","Blue Chalcocite","Carmenit","Carmenita","Carmenite","Digeniet","Diginite","Isometric Chalcocite","Kupferglanz-α","Neodigenit","Neodigenita","Neodigenite","α-Chalcocita","α-Chalcocite","α-Chalcosit","α-Chalkosin",[465,469,473,477,480,483,487,490,494,497,501,505,508,511,515,519,522],{"lang":466,"names":467},"ar",[468],"ديغينيت",{"lang":470,"names":471},"az",[472],"Digenit",{"lang":474,"names":475},"ca",[476],"digenita",{"lang":478,"names":479},"cs",[472],{"lang":481,"names":482},"de",[472],{"lang":484,"names":485},"es",[486],"Digenita",{"lang":488,"names":489},"eu",[486],{"lang":491,"names":492},"fr",[493],"digénite",{"lang":495,"names":496},"it",[7],{"lang":498,"names":499},"ja",[500],"方輝銅鉱",{"lang":502,"names":503},"nb",[504],"digenitt",{"lang":506,"names":507},"nn",[504],{"lang":509,"names":510},"pl",[472],{"lang":512,"names":513},"uk",[514],"Дигеніт",{"lang":516,"names":517},"zh",[518],"蓝辉铜矿",{"lang":520,"names":521},"zh-hans",[518],{"lang":523,"names":524},"zh-hant",[525],"藍輝銅礦","Q414848",{"history":11,"applications":11}]