[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:4293":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":21,"key_elements":22,"impurities":23,"cim":24,"ima_status":25,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":27,"discovery_year":28,"strunz10ed1":29,"strunz10ed2":30,"strunz10ed3":31,"strunz10ed4":32,"dana8ed1":33,"dana8ed2":34,"dana8ed3":35,"dana8ed4":36,"csystem":37,"cclass":11,"spacegroup":11,"spacegroupset":38,"a":39,"b":40,"c":41,"alpha":38,"beta":42,"gamma":38,"aerror":43,"berror":44,"cerror":45,"alphaerror":11,"betaerror":45,"gammaerror":11,"va3":46,"z":47,"csmetamict":14,"commentcrystal":48,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":11,"tlform":49,"hmin":43,"hmax":43,"hardtype":11,"vhnmin":38,"vhnmax":38,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":50,"dmeas2":50,"dcalc":51,"dmeaserror":52,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":53,"commentluster":11,"diapheny":54,"streak":11,"colour":55,"commentcolor":11,"colors":56,"streak_colors":11,"luminescence":11,"uv":11,"cleavage":58,"cleavagetype":59,"fracturetype":11,"tenacity":11,"commentbreak":11,"opticaltype":60,"opticalsign":61,"opticalalpha":62,"opticalalpha2":38,"opticalalphaerror":43,"opticalbeta":63,"opticalbeta2":38,"opticalbetaerror":43,"opticalgamma":64,"opticalgamma2":38,"opticalgammaerror":11,"opticalomega":38,"opticalomega2":38,"opticalomegaerror":11,"opticalepsilon":38,"opticalepsilon2":38,"opticalepsilonerror":11,"opticaln":38,"opticaln2":38,"opticalnerror":11,"optical2vcalc":65,"optical2vcalc2":38,"optical2vcalcerror":11,"optical2vmeasured":66,"optical2vmeasured2":38,"optical2vmeasurederror":43,"rimin":67,"rimax":68,"opticaldispersion":69,"opticalpleochroism":70,"opticalpleochorismdesc":11,"opticalbirefringence":11,"opticalcomments":11,"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":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":106,"confused_with":107,"type_localities":108,"occurrence_total":115,"citations":116,"images":141,"structures":181,"synonyms":182,"language_names":187,"wikidata_qid":211,"texts":212},4293,"1:1:4293:8","1920945e-0206-4d6a-9604-6c7bb6311de4","Willemseite","Wls",0,"mineral",null,39702,122,false,"Ni\u003Csub>3\u003C\u002Fsub>Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>10\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>",[17,18,19,20],"Ni","Si","O","H",[17,18,19,20],[17],"Al,Fe,Co,Ca,H2O","14.26.4",[26],"APPROVED",1968,"1968","9","E","C","05","71","2","1","4","Monoclinic","0","5.316","9.149","18.994","99.96",2,3,6,909.85,4,"Point Group: m or 2\u002Fm:; Space Group: Cc or C2\u002Fc:","fine grained massive","3.31","3.348",1,"Waxy,Greasy","Translucent","Light green",[57],"green","{001}","Perfect","Biaxial","-","1.600","1.652","1.655","26","27",1.6,1.655,"r \u003C v, weak","Non-pleochroic","National Museum of Natural History, Washington, D.C., USA, 132464, 132465.","Ni end-member of the Pyrophyllite-Talc Group.","Named after Johannes Willemse (1909, Harrismith District, Orange Free State - 1967), Professor of Geology, University of Pretoria (South Africa). He was an authority on layered mafic intrusions and, in particular, on the Bushveld Igneous Complex.","2025-08-11 12:14:25",[],[77,85,92,99],{"id":78,"name":79,"entrytype":9,"csystem":37,"ima_formula":80,"mindat_formula":80,"hmin":81,"hmax":43,"dmeas":82,"dcalc":83,"primary_image_id":84},1498,"Ferripyrophyllite","Fe\u003Csup>3+\u003C\u002Fsup>Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>5\u003C\u002Fsub>(OH)",1.5,"2.97","3.05",8635,{"id":86,"name":87,"entrytype":9,"csystem":88,"ima_formula":89,"mindat_formula":89,"hmin":81,"hmax":43,"dmeas":90,"dcalc":82,"primary_image_id":91},2722,"Minnesotaite","Triclinic","Fe\u003Csup>2+\u003C\u002Fsup>\u003Csub>3\u003C\u002Fsub>Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>10\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>","3.01",16332,{"id":93,"name":94,"entrytype":9,"csystem":88,"ima_formula":95,"mindat_formula":95,"hmin":52,"hmax":43,"dmeas":96,"dcalc":97,"primary_image_id":98},3323,"Pyrophyllite","Al\u003Csub>2\u003C\u002Fsub>Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>10\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>","2.65","2.81",20312,{"id":100,"name":101,"entrytype":9,"csystem":88,"ima_formula":102,"mindat_formula":102,"hmin":52,"hmax":52,"dmeas":103,"dcalc":104,"primary_image_id":105},3875,"Talc","Mg\u003Csub>3\u003C\u002Fsub>Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>10\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>","2.58","2.78",13217,[],[],[109],{"id":110,"txt":111,"latitude":112,"longitude":113,"country":114},4378,"Bon Accord Ni deposit, Barberton, Mbombela Local Municipality, Ehlanzeni District Municipality, Mpumalanga, South Africa",-25.673139,31.169523,"South Africa",13,[117,120,124,128,132,136],{"id":118,"year":27,"html":119,"doi":11},16128112,"Hiemstra, S.A., de Waal, S.A. (1968) Nickel minerals from Barberton, III. Willemseite, a nickelian talc. National Institute of Metallurgy (South Africa) Research Report. Rep.: 352: 1-14.",{"id":121,"year":122,"html":123,"doi":11},525294,1969,"Fleischer, Michael (1969) New Mineral Names. \u003Ci>American Mineralogist\u003C\u002Fi>,  54 (11-12) 1737-1742 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM54\u002FAM54_1737.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":125,"year":126,"html":127,"doi":11},525303,1970,"de Waal, S. A. (1970) Nickel minerals from Barberton, South Africa: III. Willemseite, a nickel-rich talc. \u003Ci>American Mineralogist\u003C\u002Fi>,  55 (1-2). 31-42 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM55\u002FAM55_31.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":129,"year":130,"html":131,"doi":11},16968136,2001,"(2001) Willemseite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fwillemseite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":133,"year":134,"html":135,"doi":11},16118515,2014,"Villanova-de-Benavent, C., Tredoux, M., Aiglsperger, T., Proenza, J. (2014): Ni-Mg-phyllosilicates from Bon Accord, Barberton, South Africa: new data on willemseite and nimite. 21st General Meeting of the IMA (IMA2014), Gauteng, South Africa, September 1-5; Abstract Volume, 212.",{"id":137,"year":138,"html":139,"doi":140},244756,2016,"Tredoux, M., Zaccarini, F., Garuti, G., Miller, D. E. (2016) Phases in the Ni–Sb–As system which occur in the Bon Accord oxide body, Barberton greenstone belt, South Africa. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  80 (1) 187-198 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.2015.079.7.07'>doi:10.1180\u002Fminmag.2015.079.7.07\u003C\u002Fa>","10.1180\u002Fminmag.2015.079.7.07",[142,152,158,166,173],{"id":143,"source_url":144,"license_code":145,"credit_html":146,"title":147,"description":148,"author":149,"original_width":150,"original_height":151},8262,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10153606","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10153606\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Falcondoite-Willemseite-181702.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFalcondoite\" class=\"extiw\" title=\"en:Falcondoite\">Falcondoite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FWillemseite\" class=\"extiw\" title=\"en:Willemseite\">Willemseite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Loma Peguera, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBonao\" class=\"extiw\" title=\"en:Bonao\">Bonao\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMonse%C3%B1or_Nouel_Province\" class=\"extiw\" title=\"en:Monseñor Nouel Province\">Monseñor Nouel Province\u003C\u002Fa>, Dominican Republic (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-819.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 4.3 x 3.0 x 0.3 cm.\u003C\u002Fdd>\n\u003Cdd>Falcondoite and willemseite are rare nickel, magnesium silicates found in a serpentinized harzbergite massif or an obducted ophiolite at a plate collision of oceanic crust with continental crust. The locality is in the Dominican Republic, which is the Type Locality for falcondoite. This very showy, bright green thin crust is mostly green falcondoite, with just a bit of lighter, olive willemseite.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",550,425,{"id":153,"source_url":154,"license_code":145,"credit_html":155,"title":156,"description":148,"author":149,"original_width":150,"original_height":157},8263,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10153607","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10153607\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Falcondoite-Willemseite-181703.jpg",475,{"id":159,"source_url":160,"license_code":145,"credit_html":161,"title":162,"description":163,"author":149,"original_width":164,"original_height":165},8264,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10161295","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10161295\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Falcondoite-Willemseite-215137.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFalcondoite\" class=\"extiw\" title=\"en:Falcondoite\">Falcondoite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FWillemseite\" class=\"extiw\" title=\"en:Willemseite\">Willemseite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Loma Peguera, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBonao\" class=\"extiw\" title=\"en:Bonao\">Bonao\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMonse%C3%B1or_Nouel_Province\" class=\"extiw\" title=\"en:Monseñor Nouel Province\">Monseñor Nouel Province\u003C\u002Fa>, Dominican Republic (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-819.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 6.5 x 4.5 x 1.5 cm.\u003C\u002Fdd>\n\u003Cdd>This attractive specimen is primarily composed of a solid mass of the rare mineral Falcondoite, a nickel-rich species. A subtle, microcrystalline druse of darker olive-colored material mixed in, is the Willemseite. Rarely seen material from the type locality.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",785,800,{"id":167,"source_url":168,"license_code":145,"credit_html":169,"title":170,"description":171,"author":149,"original_width":165,"original_height":172},8265,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10161296","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10161296\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Falcondoite-Willemseite-215138.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFalcondoite\" class=\"extiw\" title=\"en:Falcondoite\">Falcondoite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FWillemseite\" class=\"extiw\" title=\"en:Willemseite\">Willemseite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Loma Peguera, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBonao\" class=\"extiw\" title=\"en:Bonao\">Bonao\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMonse%C3%B1or_Nouel_Province\" class=\"extiw\" title=\"en:Monseñor Nouel Province\">Monseñor Nouel Province\u003C\u002Fa>, Dominican Republic (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-819.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 7.0 x 3.8 x 0.8 cm.\u003C\u002Fdd>\n\u003Cdd>This attractive specimen is primarily composed of a solid mass of the rare mineral Falcondoite, a nickel-rich species. A subtle, microcrystalline druse of darker olive-colored material mixed in, is the Willemseite. Rarely seen material from the type locality.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",450,{"id":174,"source_url":175,"license_code":145,"credit_html":176,"title":177,"description":178,"author":149,"original_width":179,"original_height":180},8266,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10166930","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10166930\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Falcondoite-Willemseite-249302.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFalcondoite\" class=\"extiw\" title=\"en:Falcondoite\">Falcondoite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FWillemseite\" class=\"extiw\" title=\"en:Willemseite\">Willemseite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Loma Peguera, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBonao\" class=\"extiw\" title=\"en:Bonao\">Bonao\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMonse%C3%B1or_Nouel_Province\" class=\"extiw\" title=\"en:Monseñor Nouel Province\">Monseñor Nouel Province\u003C\u002Fa>, Dominican Republic (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-819.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 5.4 x 4.0 x 0.8 cm.\u003C\u002Fdd>\n\u003Cdd>Falcondoite and willemseite are very rare nickel, magnesium silicates found in strange ultramafics - read a serpentinized harzbergite massif or an obducted ophiolite at a plate collision of oceanic crust with continental crust. The locality is in the Dominican Republic, which is the Type Locality for falcondoite. This fine, bright green thin crust is mostly scalloped, green falcondoite, with just a bit of blocky, darker, olive willemseite on the right edge, center. Very rarely available.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",600,446,[],[183,184,185,186],"Komarite","Konarit","Konnarit","Willemseiet",[188,192,196,200,204,208],{"lang":189,"names":190},"ar",[191],"وليمزيت",{"lang":193,"names":194},"ca",[195],"wil·lemseïta",{"lang":197,"names":198},"de",[199],"Willemseit",{"lang":201,"names":202},"es",[203],"Willemseíta",{"lang":205,"names":206},"eu",[207],"Willemseita",{"lang":209,"names":210},"it",[7],"Q1170510",{"history":11,"applications":11}]