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contains Co substituting for Ni.",[18,19,20],"Cu","Ni","S",[18,19,20],[18,19],"Co,Fe","3.11.12",[26],"APPROVED",1977,"1977","2","D","A","05","10","1","3","Isometric",32,222,"0","9.520",8,"Space group assumed by comparison to related thiospinels.","Minute crystals to 200 microns.","Anhedral crystals, up to 200 µm, disseminated in copper sulfides.",5,"446","464",25,"4.76","Metallic","Opaque","Steel gray",[54],"gray","Creamy white","Isotropic","(36.4) 420,\r\n(40.9) 460,\r\n(42.5) 500,\r\n(43.4) 546,\r\n(45.3) 589,\r\n(43.8) 640","Disseminated in copper minerals","1) The Natural History Museum, London, England.\r\n2) Royal Ontario Museum, Toronto, Canada, M35070.\r\n3) National Museum of Natural History (Smithsonian), Washington, D.C., USA, 137072.","See also Unnamed (Fe3+-analogue of Fletcherite).","Named for the type locality, the Fletcher Mine, Reynolds Co., Missouri, USA.","2025-08-11 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A., Chao, George Y. (1977) New mineral names. \u003Ci>American Mineralogist\u003C\u002Fi>,  62 (9-10) 1057-1061 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM62\u002FAM62_1057.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":143,"year":27,"html":144,"doi":145},230287,"Craig, J. R., Carpenter, A. B. (1977) Fletcherite, Cu(Ni,Co)2S4, a new thiospinel from the Viburnum Trend (New Lead Belt), Missouri. \u003Ci>Economic Geology\u003C\u002Fi>,  72 (3). 480-486 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2113\u002Fgsecongeo.72.3.480'>doi:10.2113\u002Fgsecongeo.72.3.480\u003C\u002Fa>","10.2113\u002Fgsecongeo.72.3.480",{"id":147,"year":148,"html":149,"doi":11},16109456,1985,"Ostwald, J. (1985) Fletcherite and its genesis in the Kalgoorlie area, Western Australia. Neues Jahrbuch für Mineralogie, Monatshefte: 1985: 35-44.",{"id":151,"year":152,"html":153,"doi":11},16964353,2005,"(2005) Fletcherite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Ffletcherite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":155,"year":156,"html":157,"doi":158},129793,2019,"Bosi, Ferdinando, Biagioni, Cristian, Pasero, Marco (2019) Nomenclature and classification of the spinel supergroup. \u003Ci>European Journal of Mineralogy\u003C\u002Fi>,  31 (1) 183-192 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1127\u002Fejm\u002F2019\u002F0031-2788'>doi:10.1127\u002Fejm\u002F2019\u002F0031-2788\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Frruff_1.0\u002Fuploads\u002FEJM31_183.pdf' class='refpdflink'>\u003C\u002Fa>","10.1127\u002Fejm\u002F2019\u002F0031-2788",[160],{"id":161,"source_url":162,"license_code":163,"credit_html":164,"title":165,"description":166,"author":167,"original_width":168,"original_height":169},8970,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=145640345","CC BY 4.0","David Hospital, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=145640345\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Fletcherite.jpg","Steel grey crystal aggregates of the very rare mineral Cu-Ni sulphide mineral fletcherite from the type locality in Fletcher mine (Fletcher Mine, West Fork, Reynolds County, Missouri, United States of America).\nEx Vandenbroucke Museum collection from Waregem, Belgium","David Hospital",721,581,[],[172,173],"Fletcheriet","IMA1976-044",[175,179,184,188,192,195,198],{"lang":176,"names":177},"ca",[178],"fletcherita",{"lang":180,"names":181},"de",[182,183],"Fletcherit","IMA 1976-044",{"lang":185,"names":186},"eu",[187],"Fletcherita",{"lang":189,"names":190},"fr",[191],"fletcherite",{"lang":193,"names":194},"it",[191],{"lang":196,"names":197},"nl",[191],{"lang":199,"names":200},"zh",[201],"硫銅鎳礦","Q3746584",{"history":11,"applications":11}]