[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:621":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":15,"ima_formula":14,"elements":16,"sigelements":21,"key_elements":11,"impurities":22,"cim":23,"ima_status":24,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":27,"discovery_year":28,"strunz10ed1":29,"strunz10ed2":30,"strunz10ed3":30,"strunz10ed4":31,"dana8ed1":32,"dana8ed2":33,"dana8ed3":34,"dana8ed4":35,"csystem":36,"cclass":11,"spacegroup":11,"spacegroupset":37,"a":38,"b":39,"c":40,"alpha":37,"beta":41,"gamma":37,"aerror":11,"berror":11,"cerror":11,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":42,"csmetamict":13,"commentcrystal":43,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":44,"tlform":45,"hmin":46,"hmax":46,"hardtype":11,"vhnmin":37,"vhnmax":37,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":47,"dmeas":48,"dmeas2":49,"dcalc":37,"dmeaserror":11,"dcalcerror":11,"commentdense":50,"lustre":11,"lustretype":51,"commentluster":11,"diapheny":52,"streak":53,"colour":54,"commentcolor":55,"colors":56,"streak_colors":61,"luminescence":11,"uv":62,"cleavage":63,"cleavagetype":64,"fracturetype":65,"tenacity":66,"commentbreak":11,"opticaltype":67,"opticalsign":11,"opticalalpha":68,"opticalalpha2":69,"opticalalphaerror":11,"opticalbeta":70,"opticalbeta2":71,"opticalbetaerror":11,"opticalgamma":70,"opticalgamma2":71,"opticalgammaerror":11,"opticalomega":37,"opticalomega2":37,"opticalomegaerror":11,"opticalepsilon":37,"opticalepsilon2":37,"opticalepsilonerror":11,"opticaln":37,"opticaln2":37,"opticalnerror":11,"optical2vcalc":37,"optical2vcalc2":37,"optical2vcalcerror":11,"optical2vmeasured":37,"optical2vmeasured2":37,"optical2vmeasurederror":11,"rimin":72,"rimax":73,"opticaldispersion":74,"opticalpleochroism":75,"opticalpleochorismdesc":76,"opticalbirefringence":77,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":78,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":79,"industrial":11,"occurrence":80,"otheroccurrence":81,"type_specimen_store":82,"description_short":83,"aboutname":84,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":85,"reviewed_at":11,"variety_of":11,"varieties":86,"group_members":87,"associates":88,"confused_with":103,"type_localities":104,"occurrence_total":111,"citations":112,"images":156,"structures":198,"synonyms":205,"language_names":208,"wikidata_qid":236,"texts":237},621,"1:1:621:3","2b7111f4-8dc6-49da-be6b-6576fd1f0064","Bementite","Bem",0,"mineral",null,789,false,"Mn\u003Csub>7\u003C\u002Fsub>Si\u003Csub>6\u003C\u002Fsub>O\u003Csub>15\u003C\u002Fsub>(OH)\u003Csub>8\u003C\u002Fsub>","Mn may be replaced by minor Fe, Mg and Zn.",[17,18,19,20],"Mn","Si","O","H",[17,18,19,20],",Al,Fe,Zn,Mg,Ca,","14.17.8",[25,26],"APPROVED","GRANDFATHERED",1888,"1887","9","E","05","78","5","2","1","Monoclinic","0","7.5","9.8","5.65","90",1,"Better calculations obtained from Orthorhombic cell.","Micaceous aggregates or plates are typical. Felted aggregates of fibers or plates.","Pale grayish yellow stellate masses, resembling karpholite or pyrophyllite.",6,"Sometimes given as variable 4-6, softer mineral due to alteration","2.9","3.1","Density does not support calculations for Z","Sub-Vitreous,Resinous,Greasy","Translucent","White","Brown, dark brown, golden brown, grayish-yellow","Lighter when fresh, weathering darker. Fresh material is transparent in splinters, weathering opaque.",[57,58,59,60],"brown","yellow","colorless","white",[60],"Not fluorescent in UV.","{001} perfect, {100} and {010} very good.","Perfect","Splintery","flexible","Biaxial","1.602","1.624","1.632","1.65",1.602,1.65,"weak","Weak","Colorless, pale yellow","0.028","X ⊥ {001}.","Decomposed by hot acid, but does not gelatinize.\r\nFuses easily to a black glass.\r\nIn closed tube it gives abundant water at a red heat, changing its color to dark brown.\r\nIn a borax bead, the bead remains colorless at first, gradually changing to the characteristic manganese color.","Zinc-iron oxide ore deposit hosted in marble.","Found in low-grade metamorphic manganese silicate deposits","Muséum Nationale d’Histoire Naturelle, Paris, France, number 115.290.","Compare the very similar innsbruckite and the similar friedelite, as well as ganophyllite and parsettensite.\r\n\r\nRaman spectroscopy or diffraction techniques are required to differentiate between bementite and innsbruckite (Krüger et al., 2014).","Named for Clarence Sweet Bement [1843-1923] by George Augustus Koenig in 1887. Bement assembled the finest mineral collection in the USA. He also assembled the finest collection of U.S. coins and was interested in a variety of collectibles. Bement had a keen interest in Franklin, New Jersey minerals from whence his namesake was discovered.","2025-08-11 12:14:18",[],[],[89,96],{"id":90,"name":91,"entrytype":9,"csystem":36,"ima_formula":92,"mindat_formula":93,"hmin":46,"hmax":46,"dmeas":37,"dcalc":94,"primary_image_id":95},2968,"Okhotskite","Ca\u003Csub>2\u003C\u002Fsub>Mn\u003Csup>2+\u003C\u002Fsup>Mn\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)(SiO\u003Csub>4\u003C\u002Fsub>)(OH)\u003Csub>2\u003C\u002Fsub> · H\u003Csub>2\u003C\u002Fsub>O","Ca\u003Csub>2\u003C\u002Fsub>Mn\u003Csup>2+\u003C\u002Fsup>Mn\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>[Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>OH][SiO\u003Csub>4\u003C\u002Fsub>](OH)\u003Csub>2\u003C\u002Fsub>(OH)","3.40",18040,{"id":97,"name":98,"entrytype":99,"csystem":11,"ima_formula":11,"mindat_formula":100,"hmin":101,"hmax":102,"dmeas":11,"dcalc":11,"primary_image_id":11},43523,"Vorhauserite",2,"(Mg,Mn)\u003Csub>3\u003C\u002Fsub>(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>5\u003C\u002Fsub>)(OH)\u003Csub>4\u003C\u002Fsub>",3.5,4,[],[105],{"id":106,"txt":107,"latitude":108,"longitude":109,"country":110},3960,"Trotter Mine, Franklin Mine, Franklin, Sussex County, New Jersey, USA",41.1177778,-74.5875,"USA",171,[113,116,120,124,128,133,138,143,147,151],{"id":114,"year":27,"html":115,"doi":11},15947744,"Koenig, G.A. (1888) Preliminary note on a new mineral species from Franklin, N.J.. Proceedings of the Academy of Natural Sciences of Philadelphia, 1887, 310-311.",{"id":117,"year":118,"html":119,"doi":11},16102713,1921,"Pardee, J. T.; Larsen, E. S., Jr.; Steiger, George (1921): Bementite and neotocite from western Washington, with conclusions as to the identity of bementite and caryopilite. Journal of the Washington Academy of Sciences, 11, 25-32.",{"id":121,"year":122,"html":123,"doi":11},519398,1925,"Larsen, Esper S. (1925) The identity of ectropite and bementite. \u003Ci>American Mineralogist\u003C\u002Fi>,  10 (11) 418-421 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM10\u002FAM10_418.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":125,"year":126,"html":127,"doi":11},16102715,1929,"Smitheringale, W.V. (1929) Notes on etching tests and X-ray examination of some manganese minerals. Economic Geology, 24(5), 481-505.",{"id":129,"year":130,"html":131,"doi":132},87441,1955,"Shirozu, Haruo, Hirowatari, Fumitoshi (1955) Bementite from the Tokuzawa mine, Fukushima Prefecture. \u003Ci>The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists\u003C\u002Fi>,  39 (6) 241-248 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2465\u002Fganko1941.39.241'>doi:10.2465\u002Fganko1941.39.241\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Fwww.jstage.jst.go.jp\u002Farticle\u002Fganko1941\u002F39\u002F6\u002F39_6_241\u002F_pdf' class='refpdflink'>\u003C\u002Fa>","10.2465\u002Fganko1941.39.241",{"id":134,"year":135,"html":136,"doi":137},161645,1958,"Yoshimura, Toyofumi, Shirozu, Haruo, Hirowatari, Fumitoshi (1958) Bementite and Pyroxmangite from the Ichinomata Mine, Kumamoto Prefecture. \u003Ci>Journal of the Mineralogical Society of Japan\u003C\u002Fi>,  3 (6) 457-467 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2465\u002Fgkk1952.3.457'>doi:10.2465\u002Fgkk1952.3.457\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Fwww.jstage.jst.go.jp\u002Farticle\u002Fgkk1952\u002F3\u002F6\u002F3_6_457\u002F_pdf\u002F-char\u002Fja\u002F' class='refpdflink'>\u003C\u002Fa>","10.2465\u002Fgkk1952.3.457",{"id":139,"year":140,"html":141,"doi":142},87708,1961,"Ito, Kenzo (1961) Thermal transformation of bementite. \u003Ci>The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists\u003C\u002Fi>,  45 (6) 209-218 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2465\u002Fganko1941.45.209'>doi:10.2465\u002Fganko1941.45.209\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Fwww.jstage.jst.go.jp\u002Farticle\u002Fganko1941\u002F45\u002F6\u002F45_6_209\u002F_pdf' class='refpdflink'>\u003C\u002Fa>","10.2465\u002Fganko1941.45.209",{"id":144,"year":145,"html":146,"doi":11},529593,1994,"Heinrich, Angela R., Eggleton, Richard A., Guggenheim, Stephen (1994) Structure and polytypism of bementite, a modulated layer silicate. \u003Ci>American Mineralogist\u003C\u002Fi>,  79 (1-2) 91-106 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM79\u002FAM79_91.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":148,"year":149,"html":150,"doi":11},16963179,2001,"(2001) Bementite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fbementite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":152,"year":153,"html":154,"doi":155},244593,2014,"Krüger, Hannes, Tropper, Peter, Haefeker, Udo, Kaindl, Reinhard, Tribus, Martina, Kahlenberg, Volker, Wikete, Christoph, Fuchs, Martin R., Olieric, Vincent (2014) Innsbruckite, Mn\u003Csub>33\u003C\u002Fsub>(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>5\u003C\u002Fsub>)\u003Csub>14\u003C\u002Fsub>(OH)\u003Csub>38\u003C\u002Fsub> – a new mineral from the Tyrol, Austria. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  78 (7) 1613-1627 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.2014.078.7.06'>doi:10.1180\u002Fminmag.2014.078.7.06\u003C\u002Fa>","10.1180\u002Fminmag.2014.078.7.06",[157,167,173,181,188],{"id":158,"source_url":159,"license_code":160,"credit_html":161,"title":162,"description":163,"author":164,"original_width":165,"original_height":166},3022,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10432325","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10432325\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bementite-sea25b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBementite\" class=\"extiw\" title=\"en:Bementite\">Bementite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: near Golconda, Humboldt County, Nevada\u003C\u002Fdd>\n\u003Cdd>Size: small cabinet, 6.1 x 3.4 x 1.6 cm\n\u003Cdl>\u003Cdt>Bementite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>A rare locality specimen of bementite, named after noted collector Clarence Bement. I had never seen material from Nevada before. The accompanying label notes that it is here \"all the brown material\" in which case, this would be quite rich. Ex. John White Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",800,430,{"id":168,"source_url":169,"license_code":160,"credit_html":170,"title":171,"description":163,"author":164,"original_width":165,"original_height":172},3024,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10432328","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10432328\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bementite-sea25d.jpg",762,{"id":174,"source_url":175,"license_code":160,"credit_html":176,"title":177,"description":178,"author":164,"original_width":179,"original_height":180},3020,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10142370","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10142370\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bementite-Andradite-137564.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBementite\" class=\"extiw\" title=\"en:Bementite\">Bementite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAndradite\" class=\"extiw\" title=\"en:Andradite\">Andradite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: N'Chwaning Mines, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKuruman,_Northern_Cape\" class=\"extiw\" title=\"en:Kuruman, Northern Cape\">Kuruman\u003C\u002Fa>, Kalahari manganese fields, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNorthern_Cape\" class=\"extiw\" title=\"en:Northern Cape\">Northern Cape Province\u003C\u002Fa>, South Africa (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-55925.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 5.2 x 3.9 x 2.2 cm.\u003C\u002Fdd>\n\u003Cdd>Extremely lustrous and sparkly, gemmy, deep wine-red andradite garnets richly covering the matrix, with accenting pale bementite. Specimens from the Manganese Fields of South Africa carry a special appeal for many collectors; this one came out of the collection of David Ellis.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",600,497,{"id":182,"source_url":183,"license_code":160,"credit_html":184,"title":185,"description":178,"author":164,"original_width":186,"original_height":187},3021,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10142371","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10142371\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bementite-Andradite-137565.jpg",400,370,{"id":189,"source_url":190,"license_code":191,"credit_html":192,"title":193,"description":194,"author":195,"original_width":196,"original_height":197},3026,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=163487415","CC0 1.0","Nessa Eull, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=163487415\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bementite with limonite and quartz (GeoDIL number - 2539).jpg","Bementite (H10Mn8Si7O27) crystals are not known, as the mineral is found in massive granular form, breaking into rectangular blocks. It is found in radiate or stellate masses with minute foliate structure, and in compact, hornlike form. This sample is about 6 cm in length and is seen here with limonite and quartz.","Nessa Eull",2156,1616,[199],{"id":200,"url":201,"label":202,"formula":203,"spacegroup":204,"year":145},1374,"\u002Fcif\u002F1374.cif","Heinrich 1994","Si6 Mn6.682 O23","P 1 21\u002Fc 1",[206,207],"Bementiet","Bementite (of Koenig)",[209,213,217,221,224,228,232],{"lang":210,"names":211},"ca",[212],"bementita",{"lang":214,"names":215},"de",[216],"Bementit",{"lang":218,"names":219},"es",[220],"Bementita",{"lang":222,"names":223},"eu",[220],{"lang":225,"names":226},"fr",[227],"bémentite",{"lang":229,"names":230},"it",[231],"bementite",{"lang":233,"names":234},"zh",[235],"蜡硅锰矿","Q3637915",{"history":11,"applications":11}]