[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:2767":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":16,"elements":17,"sigelements":24,"key_elements":11,"impurities":11,"cim":25,"ima_status":26,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":11,"discovery_year":29,"strunz10ed1":30,"strunz10ed2":31,"strunz10ed3":23,"strunz10ed4":32,"dana8ed1":33,"dana8ed2":34,"dana8ed3":30,"dana8ed4":35,"csystem":36,"cclass":37,"spacegroup":38,"spacegroupset":39,"a":40,"b":41,"c":42,"alpha":39,"beta":43,"gamma":39,"aerror":11,"berror":11,"cerror":11,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":44,"csmetamict":14,"commentcrystal":11,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":45,"tlform":11,"hmin":37,"hmax":37,"hardtype":11,"vhnmin":39,"vhnmax":39,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":46,"dmeas2":46,"dcalc":47,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":48,"commentluster":11,"diapheny":49,"streak":11,"colour":50,"commentcolor":51,"colors":52,"streak_colors":11,"luminescence":11,"uv":11,"cleavage":59,"cleavagetype":60,"fracturetype":11,"tenacity":11,"commentbreak":11,"opticaltype":61,"opticalsign":62,"opticalalpha":63,"opticalalpha2":39,"opticalalphaerror":11,"opticalbeta":64,"opticalbeta2":39,"opticalbetaerror":11,"opticalgamma":65,"opticalgamma2":39,"opticalgammaerror":11,"opticalomega":39,"opticalomega2":39,"opticalomegaerror":11,"opticalepsilon":39,"opticalepsilon2":39,"opticalepsilonerror":11,"opticaln":39,"opticaln2":39,"opticalnerror":11,"optical2vcalc":66,"optical2vcalc2":39,"optical2vcalcerror":11,"optical2vmeasured":67,"optical2vmeasured2":39,"optical2vmeasurederror":11,"rimin":68,"rimax":69,"opticaldispersion":70,"opticalpleochroism":71,"opticalpleochorismdesc":72,"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":73,"otheroccurrence":74,"type_specimen_store":75,"description_short":76,"aboutname":77,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":78,"reviewed_at":11,"variety_of":11,"varieties":79,"group_members":80,"associates":95,"confused_with":190,"type_localities":200,"occurrence_total":207,"citations":208,"images":236,"structures":307,"synonyms":319,"language_names":321,"wikidata_qid":344,"texts":345},2767,"1:1:2767:6","064ab492-5287-4042-befc-4b4e2ae5cdc3","Montgomeryite","Mgm",0,"mineral",null,53588,2180,false,"Ca\u003Csub>4\u003C\u002Fsub>MgAl\u003Csub>4\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>6\u003C\u002Fsub>(OH)\u003Csub>4\u003C\u002Fsub>·12H\u003Csub>2\u003C\u002Fsub>O","Ca\u003Csub>4\u003C\u002Fsub>MgAl\u003Csub>4\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>6\u003C\u002Fsub>(OH)\u003Csub>4\u003C\u002Fsub> · 12H\u003Csub>2\u003C\u002Fsub>O",[18,19,20,21,22,23],"Al","Ca","Mg","O","P","H",[18,19,20,21,22,23],"19.8.12",[27,28],"APPROVED","GRANDFATHERED","1940","8","D","25","42","11","1","Monoclinic",4,7,"0","10.02","24.12","6.24","91.55",2,"Crystals lathlike, flattened on {010} and elongated and striated along [001]; terminated by pyramids. {010} dominant, with many {hk0} vicinal prism forms. Commonly occur in subparallel growths in contact on {010}. Massive; as subparallel aggregates of coarse plates.","2.53","2.523","Vitreous","Transparent,Translucent","Dark green to light green, colourless, red, yellow","Coloration may be zoned.",[53,54,55,56,57,58],"green","colorless","red","yellow","orange","pink","On {010}, perfect; on {100}, poor.","Perfect","Biaxial","-","1.572","1.578","1.582","78","75",1.572,1.582,"r \u003C v strong","Weak","X = Colourless to pale green\r\nY = Z = Colourless\r\n\r\nalso, may exhibit:\r\n\r\nX = Light orange-brown\r\nY = Pale magenta-pink\r\nZ = Light orange-brown","Phosphate nodules in sedmimentary rocks.","Granitic pegmatites","Harvard University, Cambridge, Massachusetts, USA: #95481.","The Mg analogue of kingsmountite and fanfaniite.\r\n\r\nA secondary mineral in sedimentary phosphate nodules and as a late-stage mineral in highly oxidized phosphate nodules in granitic pegmatite.","After Arthur Montgomery (2 December 1909, New York City, New York, USA - 31 December 1999, Albuquerque, New Mexico, USA), American mineralogist, Professor of Geology, Lafayette College, Easton, Pennsylvania, USA, who collected the first specimens.","2025-08-11 12:14:22",[],[81,86],{"id":82,"name":83,"entrytype":9,"csystem":36,"ima_formula":84,"mindat_formula":85,"hmin":11,"hmax":11,"dmeas":11,"dcalc":11,"primary_image_id":11},53148,"Fanfaniite","Ca\u003Csub>4\u003C\u002Fsub>Mn\u003Csup>2+\u003C\u002Fsup>Al\u003Csub>4\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>6\u003C\u002Fsub>(OH)\u003Csub>4\u003C\u002Fsub> · 12H\u003Csub>2\u003C\u002Fsub>O","Ca\u003Csub>4\u003C\u002Fsub>Mn\u003Csup>2+\u003C\u002Fsup>Al\u003Csub>4\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>6\u003C\u002Fsub>(OH)\u003Csub>4\u003C\u002Fsub>·12H\u003Csub>2\u003C\u002Fsub>O",{"id":87,"name":88,"entrytype":9,"csystem":89,"ima_formula":90,"mindat_formula":91,"hmin":92,"hmax":92,"dmeas":93,"dcalc":94,"primary_image_id":11},2211,"Kingsmountite","Triclinic","Ca\u003Csub>3\u003C\u002Fsub>MnFe\u003Csup>2+\u003C\u002Fsup>Al\u003Csub>4\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>6\u003C\u002Fsub>(OH)\u003Csub>4\u003C\u002Fsub> · 12H\u003Csub>2\u003C\u002Fsub>O","Ca\u003Csub>3\u003C\u002Fsub>Mn\u003Csup>2+\u003C\u002Fsup>FeAl\u003Csub>4\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>6\u003C\u002Fsub>(OH)\u003Csub>4\u003C\u002Fsub>·12H\u003Csub>2\u003C\u002Fsub>O",2.5,"2.51","2.58",[96,103,108,116,125,133,139,146,154,162,171,181],{"id":97,"name":98,"entrytype":9,"csystem":36,"ima_formula":99,"mindat_formula":100,"hmin":92,"hmax":92,"dmeas":93,"dcalc":101,"primary_image_id":102},832,"Calcioferrite","Ca\u003Csub>4\u003C\u002Fsub>MgFe\u003Csup>3+\u003C\u002Fsup>\u003Csub>4\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>6\u003C\u002Fsub>(OH)\u003Csub>4\u003C\u002Fsub> · 12H\u003Csub>2\u003C\u002Fsub>O","Ca\u003Csub>4\u003C\u002Fsub>MgFe\u003Csup>3+\u003C\u002Fsup>\u003Csub>4\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>6\u003C\u002Fsub>(OH)\u003Csub>4\u003C\u002Fsub>·12H\u003Csub>2\u003C\u002Fsub>O","2.65",4376,{"id":104,"name":105,"entrytype":44,"csystem":11,"ima_formula":11,"mindat_formula":106,"hmin":11,"hmax":11,"dmeas":11,"dcalc":11,"primary_image_id":107},31325,"Carbonate-rich Apatite","Ca\u003Csub>5\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub>(Cl\u002FF\u002FOH)",38243,{"id":109,"name":110,"entrytype":9,"csystem":36,"ima_formula":111,"mindat_formula":112,"hmin":113,"hmax":113,"dmeas":101,"dcalc":114,"primary_image_id":115},1383,"Englishite","K\u003Csub>3\u003C\u002Fsub>Na\u003Csub>2\u003C\u002Fsub>Ca\u003Csub>10\u003C\u002Fsub>Al\u003Csub>15\u003C\u002Fsub>(OH)\u003Csub>7\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>21\u003C\u002Fsub> · 26H\u003Csub>2\u003C\u002Fsub>O","K\u003Csub>3\u003C\u002Fsub>Na\u003Csub>2\u003C\u002Fsub>Ca\u003Csub>10\u003C\u002Fsub>Al\u003Csub>15\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>21\u003C\u002Fsub>(OH)\u003Csub>7\u003C\u002Fsub>·26H\u003Csub>2\u003C\u002Fsub>O",3,"2.69",7842,{"id":117,"name":118,"entrytype":9,"csystem":89,"ima_formula":119,"mindat_formula":120,"hmin":121,"hmax":121,"dmeas":122,"dcalc":123,"primary_image_id":124},1443,"Fairfieldite","Ca\u003Csub>2\u003C\u002Fsub>Mn\u003Csup>2+\u003C\u002Fsup>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub> · 2H\u003Csub>2\u003C\u002Fsub>O","Ca\u003Csub>2\u003C\u002Fsub>Mn\u003Csup>2+\u003C\u002Fsup>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>·2H\u003Csub>2\u003C\u002Fsub>O",3.5,"3.08","3.095",8254,{"id":126,"name":127,"entrytype":9,"csystem":89,"ima_formula":128,"mindat_formula":129,"hmin":121,"hmax":121,"dmeas":130,"dcalc":131,"primary_image_id":132},1728,"Gordonite","MgAl\u003Csub>2\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub> · 8H\u003Csub>2\u003C\u002Fsub>O","MgAl\u003Csub>2\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>·8H\u003Csub>2\u003C\u002Fsub>O","2.23","2.22",10243,{"id":134,"name":135,"entrytype":9,"csystem":36,"ima_formula":136,"mindat_formula":137,"hmin":121,"hmax":121,"dmeas":93,"dcalc":46,"primary_image_id":138},2694,"Metavariscite","Al(PO\u003Csub>4\u003C\u002Fsub>) · 2H\u003Csub>2\u003C\u002Fsub>O","AlPO\u003Csub>4\u003C\u002Fsub>·2H\u003Csub>2\u003C\u002Fsub>O",16087,{"id":140,"name":141,"entrytype":9,"csystem":36,"ima_formula":142,"mindat_formula":143,"hmin":92,"hmax":92,"dmeas":39,"dcalc":144,"primary_image_id":145},2728,"Mitridatite","Ca\u003Csub>2\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>3\u003C\u002Fsub>O\u003Csub>2\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub> · 3H\u003Csub>2\u003C\u002Fsub>O","Ca\u003Csub>2\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>3\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub>O\u003Csub>2\u003C\u002Fsub>·3H\u003Csub>2\u003C\u002Fsub>O","3.25",16380,{"id":147,"name":148,"entrytype":9,"csystem":36,"ima_formula":149,"mindat_formula":150,"hmin":121,"hmax":121,"dmeas":151,"dcalc":152,"primary_image_id":153},3431,"Robertsite","Ca\u003Csub>2\u003C\u002Fsub>Mn\u003Csup>3+\u003C\u002Fsup>\u003Csub>3\u003C\u002Fsub>O\u003Csub>2\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub> · 3H\u003Csub>2\u003C\u002Fsub>O","Ca\u003Csub>2\u003C\u002Fsub>Mn\u003Csup>3+\u003C\u002Fsup>\u003Csub>3\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub>O\u003Csub>2\u003C\u002Fsub>·3H\u003Csub>2\u003C\u002Fsub>O","3.13","3.05",21005,{"id":155,"name":156,"entrytype":9,"csystem":89,"ima_formula":157,"mindat_formula":158,"hmin":92,"hmax":92,"dmeas":159,"dcalc":160,"primary_image_id":161},3970,"Tinticite","Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>3\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(OH)\u003Csub>3\u003C\u002Fsub> · 3H\u003Csub>2\u003C\u002Fsub>O","Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>3\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(OH)\u003Csub>3\u003C\u002Fsub>·3H\u003Csub>2\u003C\u002Fsub>O","2.8","2.97",24239,{"id":163,"name":164,"entrytype":9,"csystem":165,"ima_formula":166,"mindat_formula":167,"hmin":37,"hmax":37,"dmeas":168,"dcalc":169,"primary_image_id":170},4020,"Triphylite","Orthorhombic","LiFe\u003Csup>2+\u003C\u002Fsup>(PO\u003Csub>4\u003C\u002Fsub>)","LiFe\u003Csup>2+\u003C\u002Fsup>PO\u003Csub>4\u003C\u002Fsub>","3.42","3.562",24527,{"id":172,"name":173,"entrytype":9,"csystem":174,"ima_formula":175,"mindat_formula":176,"hmin":177,"hmax":177,"dmeas":178,"dcalc":179,"primary_image_id":180},4242,"Wardite","Tetragonal","NaAl\u003Csub>3\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(OH)\u003Csub>4\u003C\u002Fsub> · 2H\u003Csub>2\u003C\u002Fsub>O","NaAl\u003Csub>3\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(OH)\u003Csub>4\u003C\u002Fsub>·2H\u003Csub>2\u003C\u002Fsub>O",5,"2.81","2.805",27788,{"id":182,"name":183,"entrytype":9,"csystem":184,"ima_formula":185,"mindat_formula":186,"hmin":177,"hmax":177,"dmeas":187,"dcalc":188,"primary_image_id":189},4280,"Whitlockite","Trigonal","Ca\u003Csub>9\u003C\u002Fsub>Mg(PO\u003Csub>3\u003C\u002Fsub>OH)(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>6\u003C\u002Fsub>","Ca\u003Csub>9\u003C\u002Fsub>Mg(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>6\u003C\u002Fsub>(PO\u003Csub>3\u003C\u002Fsub>OH)","3.12","3.102",28028,[191,192],{"id":87,"name":88,"entrytype":9,"csystem":89,"ima_formula":90,"mindat_formula":91,"hmin":92,"hmax":92,"dmeas":93,"dcalc":94,"primary_image_id":11},{"id":193,"name":194,"entrytype":9,"csystem":89,"ima_formula":195,"mindat_formula":196,"hmin":113,"hmax":113,"dmeas":197,"dcalc":198,"primary_image_id":199},3118,"Paravauxite","Fe\u003Csup>2+\u003C\u002Fsup>Al\u003Csub>2\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub> · 8H\u003Csub>2\u003C\u002Fsub>O","Fe\u003Csup>2+\u003C\u002Fsup>Al\u003Csub>2\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>·8H\u003Csub>2\u003C\u002Fsub>O","2.36","2.37",18778,[201],{"id":202,"txt":203,"latitude":204,"longitude":205,"country":206},4189,"Clay Canyon, Fairfield, Sunshine Mining District, Utah County, Utah, USA",40.2763701,-112.1603653,"USA",47,[209,213,217,221,225,229,232],{"id":210,"year":211,"html":212,"doi":11},16117722,1940,"Larsen, E.S. (1940) American Mineralogist: 25: 315.",{"id":214,"year":215,"html":216,"doi":11},1118652,1951,"Palache, Charles; Berman, Harry; Frondel, Clifford (1951) \u003Ci>The System of Mineralogy\u003C\u002Fi> (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons.",{"id":218,"year":219,"html":220,"doi":11},526324,1974,"Moore, Paul Brian, Araki, Takaharu (1974) Montgomeryite, Ca\u003Csub>4\u003C\u002Fsub>Mg(H\u003Csub>2\u003C\u002Fsub>O)\u003Csub>12\u003C\u002Fsub>[Al\u003Csub>4\u003C\u002Fsub>(OH)\u003Csub>4\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>6\u003C\u002Fsub>]: Its crystal structure and relation to vauxite, Fe\u003Csup>2+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>(H\u003Csub>2\u003C\u002Fsub>O)\u003Csub>4\u003C\u002Fsub>[Al\u003Csub>4\u003C\u002Fsub>(OH)\u003Csub>4\u003C\u002Fsub>(H\u003Csub>2\u003C\u002Fsub>O)\u003Csub>4\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>4\u003C\u002Fsub>]·4H\u003Csub>2\u003C\u002Fsub>O. \u003Ci>American Mineralogist\u003C\u002Fi>,  59 (7-8) 843-850 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM59\u002FAM59_843.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":222,"year":223,"html":224,"doi":11},526592,1976,"Fanfani, Luca, Nunzi, Antonio, Zanazzi, Pier Francesco, Zanzari, Anna Rosa (1976) Additional data on the crystal structure of montgomeryite. \u003Ci>American Mineralogist\u003C\u002Fi>,  61 (1-2) 12-14 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM61\u002FAM61_12.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":226,"year":227,"html":228,"doi":11},12907694,1983,"Leavens, Peter B., Roberts, Willard L., Dunn, Pete J., Campbell, Thomas J. (1983) Red Montgomeryite and Associated Minerals from the Tip Top Pegmatite [South Dakota] With Notes on Kingsmountite and Calcioferrite. \u003Ci>The Mineralogical Record\u003C\u002Fi>, 14 (3) 195-197",{"id":230,"year":227,"html":231,"doi":11},16104348,"Ankinovich, E.A., S.G. Ankinovich, A.A. Dara, and F.A. Kurmakaeva (1983) Ferrous montgomeryite of the Kara-Tau. Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (Proceedings of the Russian Mineralogical Society), 112, 84-88 (in Russian with English abstract).",{"id":233,"year":234,"html":235,"doi":11},16966108,2005,"(2005) Montgomeryite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fmontgomeryite.pdf' class='refpdflink'>\u003C\u002Fa>",[237,247,257,267,275,283,290,298],{"id":238,"source_url":239,"license_code":240,"credit_html":241,"title":242,"description":243,"author":244,"original_width":245,"original_height":246},16660,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176681","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176681\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Montgomeryite-Jahnsite-204197.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMontgomeryite\" class=\"extiw\" title=\"en:Montgomeryite\">Montgomeryite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FJahnsite\" class=\"extiw\" title=\"en:Jahnsite\">Jahnsite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Tip Top Mine (Tip Top pegmatite), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHenrietta_Marrie\" class=\"extiw\" title=\"en:Henrietta Marrie\">Fourmile\u003C\u002Fa>, Custer District, Custer County, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSouth_Dakota\" class=\"extiw\" title=\"en:South Dakota\">South Dakota\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-4122.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 11.1 x 6.9 x 5.3 cm.\u003C\u002Fdd>\n\u003Cdd>Montgomeryite and Jahnsite are rare phosphates and the Tip Top Quarry is the Type Locality for jahnsite. Lustrous, orange Montgomeryite crystals and contrasting, black Jahnsite and rockbridgeite richly cover the partially euhedral cabinet sized orthoclase crystal on this fine specimen. There may be mitridatite as well. Highly representative, very rich and a large specimen with these rare phosphates from this well-known locale. Collected in the 1980s.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",750,585,{"id":248,"source_url":249,"license_code":250,"credit_html":251,"title":252,"description":253,"author":254,"original_width":255,"original_height":256},16663,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=65772972","CC BY-SA 4.0","David Hospital, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=65772972\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Montgomeryite.jpg","Pale green sharp crystals of montgomeryite, a rare Ca-Mg-Al phosphate on a contrasting matrix. From: Elvira Mine, Bruguers, Barcelona, Catalonia, Spain.","David Hospital",858,666,{"id":258,"source_url":259,"license_code":260,"credit_html":261,"title":262,"description":263,"author":264,"original_width":265,"original_height":266},16664,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130433729","CC BY 4.0","Henk Smeets – tomeikminerals.com, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130433729\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Montgomeryite13278-1.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMontgomeryite\" class=\"extiw\" title=\"en:Montgomeryite\">Montgomeryite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Field of view: 2 mm\u003C\u002Fdd>\n\u003Cdd>Locality: Iron Monarch Mine, South Australia\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Henk Smeets – tomeikminerals.com",1920,1267,{"id":268,"source_url":269,"license_code":240,"credit_html":270,"title":271,"description":272,"author":244,"original_width":273,"original_height":274},3592,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10151961","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10151961\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Variscite-Montgomeryite-Crandallite-177938.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FVariscite\" class=\"extiw\" title=\"en:Variscite\">Variscite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMontgomeryite\" class=\"extiw\" title=\"en:Montgomeryite\">Montgomeryite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCrandallite\" class=\"extiw\" title=\"en:Crandallite\">Crandallite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FWardite\" class=\"extiw\" title=\"en:Wardite\">Wardite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Clay Canyon, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFairfield\" class=\"extiw\" title=\"en:Fairfield\">Fairfield\u003C\u002Fa>, Oquirrh Mts, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FUtah_County,_Utah\" class=\"extiw\" title=\"en:Utah County, Utah\">Utah County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FUtah\" class=\"extiw\" title=\"en:Utah\">Utah\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-4189.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 11.9 x 11.7 x 3.8 cm.\u003C\u002Fdd>\n\u003Cdd>This is a large phosphate nodule from this classic locality which is very rich in some of the rare species found mostly in older specimens and not around so much in pieces collected in more recent times. The bright green is the Variscite with a large amount of canary-yellow Crandalite and some gray Wardite present around the green core. The darker green circles are Montgomeryite, for which this is the type locality. Ex. Rice Northwest Museum Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",798,800,{"id":276,"source_url":277,"license_code":240,"credit_html":278,"title":279,"description":280,"author":244,"original_width":281,"original_height":282},16658,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10152383","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10152383\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Montgomeryite-Whitlockite-Microcline-179402.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMontgomeryite\" class=\"extiw\" title=\"en:Montgomeryite\">Montgomeryite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FWhitlockite\" class=\"extiw\" title=\"en:Whitlockite\">Whitlockite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMicrocline\" class=\"extiw\" title=\"en:Microcline\">Microcline\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Tip Top Mine (Tip Top pegmatite), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHenrietta_Marrie\" class=\"extiw\" title=\"en:Henrietta Marrie\">Fourmile\u003C\u002Fa>, Custer District, Custer County, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSouth_Dakota\" class=\"extiw\" title=\"en:South Dakota\">South Dakota\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-4122.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 12.3 x 4.6 x 4.6 cm.\u003C\u002Fdd>\n\u003Cdd>A fine cabinet specimen of rare phosphates from the famous Tip Top Mine of South Dakota. Light salmon-pink sprays of bladed montgomeryite are richly scattered and stand out on a large, well-formed microcline cleavage that is covered with drusy white whitlockite.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",600,355,{"id":284,"source_url":285,"license_code":240,"credit_html":286,"title":287,"description":280,"author":244,"original_width":288,"original_height":289},16659,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10152384","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10152384\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Montgomeryite-Whitlockite-Microcline-179403.jpg",500,434,{"id":291,"source_url":292,"license_code":240,"credit_html":293,"title":294,"description":295,"author":244,"original_width":296,"original_height":297},16661,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10462421","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10462421\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Montgomeryite-Variscite-Wardite-rice-01a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMontgomeryite\" class=\"extiw\" title=\"en:Montgomeryite\">Montgomeryite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FVariscite\" class=\"extiw\" title=\"en:Variscite\">Variscite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FWardite\" class=\"extiw\" title=\"en:Wardite\">Wardite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Clay Canyon, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFairfield\" class=\"extiw\" title=\"en:Fairfield\">Fairfield\u003C\u002Fa>, Oquirrh Mts, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FUtah_County,_Utah\" class=\"extiw\" title=\"en:Utah County, Utah\">Utah County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FUtah\" class=\"extiw\" title=\"en:Utah\">Utah\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-4189.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: cabinet, 11.9 x 11.7 x 3.8 cm\n\u003Cdl>\u003Cdt>Variscite with Montgomeryite (TL), Crandalite and Wardite (TL)\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This is a relatively early Rice acquisition, donated by the Rice family. It is a large phosphate nodule from this classic locality which is VERY VERY rich in some of the rare species found mostly in older specimens and not around so much in pieces colelcted in more recent times. The bright green is the Variscite with a large amount of canary-yellow Crandalite (rare!) and some gray Wardite present around the green core. The darker green circles are Montgomeryite, for which this is the type locality. This would be considered a VERY RICH specimen for the species, by the way. According to Mindat, this is also the type locality for WARDITE as well, which I had not known! Lastly, note the thickness of this specimen...it is the end of a nodule, and thick, so it could be sliced into at least two more sections if desired, increasing the total value of the pieces as each is worth about the same, I would think.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",293,400,{"id":299,"source_url":300,"license_code":240,"credit_html":301,"title":302,"description":303,"author":304,"original_width":305,"original_height":306},16662,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14866151","Leon Hupperichs, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14866151\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Tiptopite-Montgomeryite-91815.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTiptopite\" class=\"extiw\" title=\"en:Tiptopite\">Tiptopite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMontgomeryite\" class=\"extiw\" title=\"en:Montgomeryite\">Montgomeryite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer County, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSouth_Dakota\" class=\"extiw\" title=\"en:South Dakota\">South Dakota\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-4122.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Acicular xls of Tiptopite on red Montgomeryite. Field of view 4 mm. Specimen and photo Leon Hupperichs.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Leon Hupperichs",701,513,[308,314],{"id":309,"url":310,"label":311,"formula":312,"spacegroup":313,"year":223},9548,"\u002Fcif\u002F9548.cif","Fanfani 1976","Ca2 Al2 P3 Mg.5 O20 H14","C 1 2\u002Fc 1",{"id":315,"url":316,"label":317,"formula":318,"spacegroup":313,"year":219},9549,"\u002Fcif\u002F9549.cif","Moore 1974","Ca2 Mg.5 Al2 P3 O20 H14",[320],"Montgomeryiet",[322,326,330,334,337,340],{"lang":323,"names":324},"ca",[325],"montgomeryita",{"lang":327,"names":328},"de",[329],"Montgomeryit",{"lang":331,"names":332},"eu",[333],"Montgomeryita",{"lang":335,"names":336},"it",[7],{"lang":338,"names":339},"pl",[329],{"lang":341,"names":342},"ta",[343],"மாண்ட்கோமரைட்டு","Q3862429",{"history":11,"applications":11}]