[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:10343":3},{"id":4,"longid":5,"guid":6,"name":7,"shortcode_ima":8,"entrytype":9,"entrytype_text":10,"varietyof":11,"synid":11,"polytypeof":11,"groupid":11,"weighting":12,"nolocadd":13,"blacklisted":13,"mindat_formula":14,"mindat_formula_note":11,"ima_formula":15,"elements":16,"sigelements":24,"key_elements":25,"impurities":11,"cim":11,"ima_status":26,"ima_notes":11,"ima_history":11,"approval_year":28,"publication_year":29,"discovery_year":11,"strunz10ed1":30,"strunz10ed2":31,"strunz10ed3":23,"strunz10ed4":32,"dana8ed1":33,"dana8ed2":33,"dana8ed3":33,"dana8ed4":33,"csystem":34,"cclass":35,"spacegroup":36,"spacegroupset":33,"a":37,"b":33,"c":38,"alpha":33,"beta":33,"gamma":33,"aerror":11,"berror":11,"cerror":11,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":39,"z":11,"csmetamict":13,"commentcrystal":11,"twinning":40,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":41,"tlform":42,"hmin":43,"hmax":44,"hardtype":11,"vhnmin":45,"vhnmax":46,"vhnerror":11,"vhng":47,"vhns":11,"commenthard":11,"dmeas":33,"dmeas2":33,"dcalc":48,"dmeaserror":11,"dcalcerror":11,"commentdense":49,"lustre":11,"lustretype":50,"commentluster":11,"diapheny":11,"streak":51,"colour":52,"commentcolor":11,"colors":53,"streak_colors":59,"luminescence":11,"uv":60,"cleavage":11,"cleavagetype":61,"fracturetype":62,"tenacity":11,"commentbreak":11,"opticaltype":63,"opticalsign":64,"opticalalpha":33,"opticalalpha2":33,"opticalalphaerror":11,"opticalbeta":33,"opticalbeta2":33,"opticalbetaerror":11,"opticalgamma":33,"opticalgamma2":33,"opticalgammaerror":11,"opticalomega":65,"opticalomega2":33,"opticalomegaerror":11,"opticalepsilon":66,"opticalepsilon2":33,"opticalepsilonerror":11,"opticaln":33,"opticaln2":33,"opticalnerror":11,"optical2vcalc":33,"optical2vcalc2":33,"optical2vcalcerror":11,"optical2vmeasured":33,"optical2vmeasured2":33,"optical2vmeasurederror":11,"rimin":67,"rimax":68,"opticaldispersion":11,"opticalpleochroism":69,"opticalpleochorismdesc":70,"opticalbirefringence":11,"opticalcomments":71,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":11,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":11,"occurrence":11,"otheroccurrence":11,"type_specimen_store":72,"description_short":11,"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":77,"confused_with":78,"type_localities":79,"occurrence_total":86,"citations":87,"images":103,"structures":114,"synonyms":121,"language_names":124,"wikidata_qid":141,"texts":142},10343,"1:1:10343:7","ef22c70f-4ed7-4335-b8d8-1789d5e90943","Fencooperite","Fco",0,"mineral",null,55,false,"Ba\u003Csub>6\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>3\u003C\u002Fsub>Si\u003Csub>8\u003C\u002Fsub>O\u003Csub>23\u003C\u002Fsub>(CO\u003Csub>3\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>Cl\u003Csub>3\u003C\u002Fsub>·H\u003Csub>2\u003C\u002Fsub>O","Ba\u003Csub>6\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>3\u003C\u002Fsub>Si\u003Csub>8\u003C\u002Fsub>O\u003Csub>23\u003C\u002Fsub>(CO\u003Csub>3\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>Cl\u003Csub>3\u003C\u002Fsub> · H\u003Csub>2\u003C\u002Fsub>O",[17,18,19,20,21,22,23],"Ba","Cl","Fe","Si","O","C","H",[17,18,19,20,21,22,23],[17,18],[27],"APPROVED",2000,2001,"9","B","20","0","Trigonal",11,84,"10.727","7.085",706.1,"No twinning observed.","No crystal forms observed.","A dominant phase within black aggregates 2 mm across in barium-silicate-rich lenses.  Individual grains are anhedral to somewhat rounded to occasionally platy, and do not exceed 100 µm in size.",4.5,5,"269","367",10,"4.212","Dcalc 4.212 (empirical formula) and 4.338 (ideal formula).  Density could not be measured due to small grain size and lack of pure material.","Adamantine,Vitreous","Greyish black","Jet black to a dirty grey-brown (on very thin edges)",[54,55,56,57,58],"black","gray","brown","blue","green",[55,54],"Not fluorescent.","None Observed","Irregular\u002FUneven,Sub-Conchoidal","Uniaxial","-","1.723","1.711",1.711,1.723,"Strong","Very strongly pleochroic.\r\n\u003Cem>n\u003C\u002Fem>\u003Csub>ω\u003C\u002Fsub> = deep bluish-black\r\n\u003Cem>n\u003C\u002Fem>\u003Csub>ε\u003C\u002Fsub> = light greenish-gray","Absorption: O>>E.","National Mineral Collection at the Geological Survey of Canada, Ottawa, Ontario, Canada.","Named for California mineral collector Joseph Fenimore Cooper, Jr. (April 30, 1937, Santa Cruz, California - June 6, 2017, Santa Cruz, California). He was an avid collector of western U.S. minerals, especially in California and Nevada, and contributed to more than twenty publications.","2025-08-11 12:14:32",[],[],[],[],[80],{"id":81,"txt":82,"latitude":83,"longitude":84,"country":85},5530,"Trumbull Peak Ba-silicate deposit, Trumbull Peak, Clearing House, Clearing House Mining District, East Belt, Mariposa County, California, USA",37.6919444,-119.8641667,"USA",2,[88,91,95,99],{"id":89,"year":29,"html":90,"doi":11},15959825,"Grice, J.D. (2001) The crystal structure of fencooperite: Unique [Fe33+O13] pinwheels cross-connected by [Si8O22] islands. Canadian Mineralogist: 39: 1065-1071.",{"id":92,"year":29,"html":93,"doi":94},63518,"Roberts, A. C., Grice, J. D., Dunning, G. E., Venance, K. E. (2001) Fencooperite, Ba\u003Csub>6\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>3\u003C\u002Fsub>Si\u003Csub>8\u003C\u002Fsub>O\u003Csub>23\u003C\u002Fsub>(CO\u003Csub>3\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>Cl\u003Csub>3\u003C\u002Fsub> · H\u003Csub>2\u003C\u002Fsub>O, a new mineral species from Trumbull Peak, Mariposa County, California. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  39 (4) 1059-1064 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2113\u002Fgscanmin.39.4.1059'>doi:10.2113\u002Fgscanmin.39.4.1059\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fcm\u002Fvol39\u002FCM39_1059.pdf' class='refpdflink'>\u003C\u002Fa>","10.2113\u002Fgscanmin.39.4.1059",{"id":96,"year":97,"html":98,"doi":11},16130737,2002,"Jambor, J.L., Roberts, A.C. (2002) New mineral names. American Mineralogist: 87: 765-768.",{"id":100,"year":101,"html":102,"doi":11},16964224,2021,"(2021) Fencooperite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002FFencooperite.pdf' class='refpdflink'>\u003C\u002Fa>",[104],{"id":105,"source_url":106,"license_code":107,"credit_html":108,"title":109,"description":110,"author":111,"original_width":112,"original_height":113},8440,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=85447494","CC BY-SA 3.0","Leon Hupperichs, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=85447494\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Fencooperite-654081.jpg","Black Fencooperite in colourless sanbornite. From: Trumbull Peak Ba-silicate deposit, Trumbull Peak, Clearing House, Clearing House Mining District, East Belt, Mariposa Co., California, USA.","Leon Hupperichs",991,896,[115],{"id":116,"url":117,"label":118,"formula":119,"spacegroup":120,"year":29},4479,"\u002Fcif\u002F4479.cif","Grice 2001","Ba6 Fe3 Si8 C2 O31.38 (Cl1.62 H1.38)","P 3 m 1",[122,123],"Fencooperiet","IMA2000-023",[125,129,134,138],{"lang":126,"names":127},"ca",[128],"fencooperita",{"lang":130,"names":131},"de",[132,133],"Fencooperit","IMA 2000-023",{"lang":135,"names":136},"eu",[137],"Fencooperita",{"lang":139,"names":140},"it",[7],"Q3742415",{"history":11,"applications":11}]