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Pseudomonoclinic.","No macroscopic twinning.","None","Radiating acicular brown crystals.",5.5,"3.05","3.09",2,"Vitreous","Transparent","Very light brown","Brown",[61,62],"brown","white",[61],"Good on {010}","Distinct\u002FGood","brittle","Biaxial","-","1.686","1.729","1.746","62.5","63.7",1.686,1.746,"Co-type material is deposited in the collections of the Mineral Museum of the University of Arizona, Tucson, AZ, USA, catalogue number 20009, and the RRUFF Project,  deposition number R140945","Named after Jaco and Tania Janse van Nieuwenhuizen who found the specimen.","2025-08-11 12:15:13",[],[81,90],{"id":82,"name":83,"entrytype":9,"csystem":84,"ima_formula":85,"mindat_formula":86,"hmin":43,"hmax":43,"dmeas":87,"dcalc":88,"primary_image_id":89},3476,"Ruizite","Monoclinic","Ca\u003Csub>2\u003C\u002Fsub>Mn\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>11\u003C\u002Fsub>(OH)\u003Csub>4\u003C\u002Fsub> · 2H\u003Csub>2\u003C\u002Fsub>O","Ca\u003Csub>2\u003C\u002Fsub>Mn\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>[Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>11\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>](OH)\u003Csub>2\u003C\u002Fsub>·2H\u003Csub>2\u003C\u002Fsub>O","2.9","2.997",21290,{"id":91,"name":92,"entrytype":9,"csystem":84,"ima_formula":93,"mindat_formula":94,"hmin":43,"hmax":52,"dmeas":95,"dcalc":96,"primary_image_id":11},52089,"Strontioruizite","Sr\u003Csub>2\u003C\u002Fsub>Mn\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>11\u003C\u002Fsub>(OH)\u003Csub>4\u003C\u002Fsub> · 2H\u003Csub>2\u003C\u002Fsub>O","Sr\u003Csub>2\u003C\u002Fsub>Mn\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>11\u003C\u002Fsub>(OH)\u003Csub>4\u003C\u002Fsub>·2H\u003Csub>2\u003C\u002Fsub>O","3.20","3.16",[],[99],{"id":82,"name":83,"entrytype":9,"csystem":84,"ima_formula":85,"mindat_formula":86,"hmin":43,"hmax":43,"dmeas":87,"dcalc":88,"primary_image_id":89},[101],{"id":102,"txt":103,"latitude":104,"longitude":105,"country":106},133369,"N'Chwaning III Mine, N'Chwaning Mines, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa",-27.1344849,22.8461475,"South Africa",[108,112,116,120],{"id":109,"year":28,"html":110,"doi":111},244651,"Hålenius, U., Hatert, F., Pasero, M., Mills, S. J. (2015) New minerals and nomenclature modifications approved in 2015, CNMNC Newsletter No 25. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  79 (3) 529-535 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.2015.079.3.02'>doi:10.1180\u002Fminmag.2015.079.3.02\u003C\u002Fa>","10.1180\u002Fminmag.2015.079.3.02",{"id":113,"year":114,"html":115,"doi":11},16140291,2016,"rruff.info (n.d.) \u003Ca target='_blank' rel='nofollow' href='http:\u002F\u002Frruff.info\u002Ftaniajacoite\u002Fdisplay=default'>http:\u002F\u002Frruff.info\u002Ftaniajacoite\u002Fdisplay=default\u003C\u002Fa>",{"id":117,"year":29,"html":118,"doi":119},13664655,"Yang, Hexiong, Gu, Xiangping, Cairncross, Bruce, Downs, Robert T., Evans, Stanley H. (2021) Taniajacoite and strontioruizite, two new minerals isostructural with ruizite from the N'Chwaning III Mine, Kalahari Manganese Field, South Africa. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  59 (2) 431-444 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3749\u002Fcanmin.2000037'>doi:10.3749\u002Fcanmin.2000037\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Frruff_1.0\u002Fuploads\u002FCM59_431.pdf' class='refpdflink'>\u003C\u002Fa>","10.3749\u002Fcanmin.2000037",{"id":121,"year":122,"html":123,"doi":11},16967596,2022,"(2022) Taniajacoite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002FTaniajacoite.pdf' class='refpdflink'>\u003C\u002Fa>",[125,135],{"id":126,"source_url":127,"license_code":128,"credit_html":129,"title":130,"description":131,"author":132,"original_width":133,"original_height":134},23557,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=83991743","CC0 1.0","Daderot, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=83991743\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Taniajacoite, N'Chwaning III Mine, Cape Province, South Africa - University of Arizona Mineral Museum - University of Arizona - Tucson, AZ - DSC08553.jpg","Exhibit in the University of Arizona Mineral Museum - University of Arizona - Tucson, Arizona, USA.","Daderot",3568,4792,{"id":136,"source_url":137,"license_code":128,"credit_html":138,"title":139,"description":131,"author":132,"original_width":140,"original_height":141},23558,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=115076895","Daderot, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=115076895\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Taniajacoite, N'Chwaning III Mine, Cape Province, South Africa - University of Arizona Mineral Museum - University of Arizona - Tucson, AZ - DSC08553 (cropped).jpg",2914,1743,[143],{"id":144,"url":145,"label":146,"formula":147,"spacegroup":148,"year":29},13413,"\u002Fcif\u002F13413.cif","Yang 2021","Sr1.19 Ca.81 (Mn1.9 Fe.1) Si4 O17 H8","C 1",[150,151],"IMA2014-107","Taniajacoiet",[153,157,162,166],{"lang":154,"names":155},"ca",[156],"taniajacoïta",{"lang":158,"names":159},"de",[160,161],"IMA 2014-107","Taniajacoit",{"lang":163,"names":164},"eu",[165],"Taniajacoita",{"lang":167,"names":168},"it",[169],"taniajacoite","Q20830647",{"history":11,"applications":11}]