[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:27449":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":16,"ima_formula":17,"elements":18,"sigelements":24,"key_elements":25,"impurities":26,"cim":11,"ima_status":27,"ima_notes":11,"ima_history":11,"approval_year":29,"publication_year":11,"discovery_year":11,"strunz10ed1":30,"strunz10ed2":31,"strunz10ed3":32,"strunz10ed4":33,"dana8ed1":34,"dana8ed2":34,"dana8ed3":34,"dana8ed4":34,"csystem":35,"cclass":36,"spacegroup":37,"spacegroupset":38,"a":39,"b":40,"c":41,"alpha":34,"beta":42,"gamma":34,"aerror":43,"berror":44,"cerror":43,"alphaerror":11,"betaerror":45,"gammaerror":11,"va3":46,"z":47,"csmetamict":14,"commentcrystal":48,"twinning":49,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":11,"tlform":50,"hmin":36,"hmax":51,"hardtype":11,"vhnmin":34,"vhnmax":34,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":52,"dmeas2":52,"dcalc":53,"dmeaserror":54,"dcalcerror":11,"commentdense":55,"lustre":11,"lustretype":56,"commentluster":11,"diapheny":57,"streak":58,"colour":59,"commentcolor":60,"colors":61,"streak_colors":64,"luminescence":11,"uv":65,"cleavage":11,"cleavagetype":66,"fracturetype":67,"tenacity":68,"commentbreak":11,"opticaltype":69,"opticalsign":11,"opticalalpha":34,"opticalalpha2":34,"opticalalphaerror":11,"opticalbeta":34,"opticalbeta2":34,"opticalbetaerror":11,"opticalgamma":34,"opticalgamma2":34,"opticalgammaerror":11,"opticalomega":34,"opticalomega2":34,"opticalomegaerror":11,"opticalepsilon":34,"opticalepsilon2":34,"opticalepsilonerror":11,"opticaln":70,"opticaln2":34,"opticalnerror":11,"optical2vcalc":34,"optical2vcalc2":34,"optical2vcalcerror":11,"optical2vmeasured":34,"optical2vmeasured2":34,"optical2vmeasurederror":11,"rimin":11,"rimax":11,"opticaldispersion":11,"opticalpleochroism":11,"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":71,"otheroccurrence":11,"type_specimen_store":72,"description_short":73,"aboutname":74,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":75,"reviewed_at":11,"variety_of":11,"varieties":76,"group_members":77,"associates":110,"confused_with":111,"type_localities":112,"occurrence_total":119,"citations":120,"images":137,"structures":192,"synonyms":193,"language_names":196,"wikidata_qid":216,"texts":217},27449,"1:1:27449:8","275570a5-89cf-408b-8e2b-9981ee9ee5ed","Samarskite-(Yb)","Smk-Yb",0,"mineral",null,39540,67,false,"YbFe\u003Csup>3+\u003C\u002Fsup>(Nb,Ta)\u003Csub>2\u003C\u002Fsub>O\u003Csub>8\u003C\u002Fsub>","After the samarskite-(Y) redefinition (Britvin et al., 2019), with Fe as an essential and not substituting element, and considering  data of Kjellman (2017), samarskite-(Yb) may either be a questionable species or a species stoichiometrically unrelated to samarskite-(Y).","YbNbO\u003Csub>4\u003C\u002Fsub>",[19,20,21,22,23],"Fe","Nb","Ta","Yb","O",[19,20,22,23],[20,22],"U, Th, Ca, Fe(II), Ta, Er, Y, Dy",[28],"APPROVED",2004,"4","D","B","25","0","Monoclinic",5,12,"P2\u002Fc ","5.688","9.915","5.199","93.16",9,2,10,292.76,4,"Must have been heated to restore the structure; the above parameters are after heating to 1100\u003Csup>o\u003C\u002Fsup>C for 12 hours.","Not observed.","Anhedral metamict masses, up to tens of centimeters in size, intergrown with columbite-(Fe) and zircon.",6,"7.03","7.079",1,"Measured density: unheated sample; calculated one: basing on the empirical formula.","Vitreous","Opaque","Brown to black","Black","Nearly opaque.",[62,63],"black","brown",[63,62],"Non-fluorescent","None Observed","Conchoidal","brittle","Isotropic","> 2.1","Late-stage replacement units at the contact between core and margin of a pegmatite.","National Museum of Natural History (Smithsonian Institution_, Washington, D.C., USA, number NMNH 174442.","Samarskite Group. The Yb analogue of Samarskite-(Y) (?). Unique combination of elements. \r\nOne of just a few known Yb-dominant minerals, the other being keiviite-(Yb), hingganite-(Yb), xenotime-(Yb), and 'hellandite-(Yb)'.","Named for being the Yb analogue of samarskite-(Y).","2025-08-11 12:14:52",[],[78,85,91,98,103],{"id":79,"name":80,"entrytype":9,"csystem":81,"ima_formula":82,"mindat_formula":83,"hmin":36,"hmax":51,"dmeas":84,"dcalc":34,"primary_image_id":11},7962,"Calciosamarskite","Orthorhombic","(Ca,Fe,Y)(Nb,Ta,Ti)O\u003Csub>4\u003C\u002Fsub>","(Ca,U\u003Csup>4+\u003C\u002Fsup>)Fe\u003Csup>3+\u003C\u002Fsup>(Nb,Ta,Ti)\u003Csub>2\u003C\u002Fsub>O\u003Csub>8\u003C\u002Fsub>","4.48",{"id":86,"name":87,"entrytype":9,"csystem":35,"ima_formula":88,"mindat_formula":89,"hmin":36,"hmax":51,"dmeas":90,"dcalc":34,"primary_image_id":11},2050,"Ishikawaite","(U,Fe,Y)NbO\u003Csub>4\u003C\u002Fsub>","U\u003Csup>4+\u003C\u002Fsup>Fe\u003Csup>2+\u003C\u002Fsup>Nb\u003Csub>2\u003C\u002Fsub>O\u003Csub>8\u003C\u002Fsub>","6.2",{"id":92,"name":93,"entrytype":9,"csystem":35,"ima_formula":94,"mindat_formula":94,"hmin":36,"hmax":51,"dmeas":95,"dcalc":96,"primary_image_id":97},3512,"Samarskite-(Y)","YFe\u003Csup>3+\u003C\u002Fsup>Nb\u003Csub>2\u003C\u002Fsub>O\u003Csub>8\u003C\u002Fsub>","5","6.28",21478,{"id":99,"name":100,"entrytype":9,"csystem":35,"ima_formula":101,"mindat_formula":101,"hmin":36,"hmax":36,"dmeas":11,"dcalc":102,"primary_image_id":11},55036,"Shakhdaraite-(Y)","ScYNb\u003Csub>2\u003C\u002Fsub>O\u003Csub>8\u003C\u002Fsub>","5.602",{"id":104,"name":105,"entrytype":9,"csystem":81,"ima_formula":106,"mindat_formula":106,"hmin":36,"hmax":107,"dmeas":108,"dcalc":34,"primary_image_id":109},4373,"Yttrotantalite-(Y)","(Y,U,Fe\u003Csup>2+\u003C\u002Fsup>)(Ta,Nb)(O,OH)\u003Csub>4\u003C\u002Fsub>",5.5,"5.5",28564,[],[],[113],{"id":114,"txt":115,"latitude":116,"longitude":117,"country":118},3645,"Little Patsy pegmatite, South Platte Pegmatite Mining District, Jefferson County, Colorado, USA",39.4105556,-105.2294444,"USA",3,[121,124,128,133],{"id":122,"year":29,"html":123,"doi":11},16134411,"Hanson, Sarah L., Simmons, William B., Falster, Alexander U. (2004) Samarskite-(Yb): A New Mineral Indicating Extreme HREE Enrichment in the South Platte NYF Pegmatite District, Colorado. GSA 2004 Denver Annual Meeting (November 7–10, 2004).",{"id":125,"year":126,"html":127,"doi":11},17122154,2017,"Kjellman, Johan (2017) ABC2O8 – a new look on the crystal chemistry and classification of samarskite group minerals, in \u003Ci>PEG2017. 8th International Symposium on Granitic Pegmatites\u003C\u002Fi>. \u003Ci>NGF Abstracts and Proceedings of the Geological Society of Norway\u003C\u002Fi>,  2017 (2) 64-67",{"id":129,"year":130,"html":131,"doi":132},154359,2019,"Britvin, Sergey N., Pekov, Igor V., Krzhizhanovskaya, Maria G., Agakhanov, Atali A., Ternes, Bernd, Schüller, Willi, Chukanov, Nikita V. (2019) Redefinition and crystal chemistry of samarskite-(Y), YFe\u003Csup>3+\u003C\u002Fsup>Nb\u003Csub>2\u003C\u002Fsub>O\u003Csub>8\u003C\u002Fsub>: cation-ordered niobate structurally related to layered double tungstates. \u003Ci>Physics and Chemistry of Minerals\u003C\u002Fi>,  46 (7) 727-741 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fs00269-019-01034-0'>doi:10.1007\u002Fs00269-019-01034-0\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Frruff_1.0\u002Fuploads\u002FPCM46_727.pdf' class='refpdflink'>\u003C\u002Fa>","10.1007\u002Fs00269-019-01034-0",{"id":134,"year":135,"html":136,"doi":11},16113028,2020,"Britvin, S.N., Pekov, I.V., Krzhizhanovskaya, M.G., Agakhanov, A.A., Ternes, B., Schüller, W., Chukanov, N.V. (2020): Samarskite-(Y) YFe\u003Csup>3+\u003C\u002Fsup>Nb\u003Csub>2\u003C\u002Fsub>O\u003Csub>8\u003C\u002Fsub>: the history of discovery and studies of the first niobate with a double wolframite structure. Mineralogy: 6: 27-37.",[138,148,156,164,174,182],{"id":139,"source_url":140,"license_code":141,"credit_html":142,"title":143,"description":144,"author":145,"original_width":146,"original_height":147},21480,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10137938","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10137938\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Samarskite-(Y)-75446.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSamarskite\" class=\"extiw\" title=\"en:Samarskite\">Samarskite-(Y)\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Spinelli Quarry (Spinelli prospect), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSouth_Glastonbury_Historic_District\" class=\"extiw\" title=\"en:South Glastonbury Historic District\">South Glastonbury\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGlastonbury\" class=\"extiw\" title=\"en:Glastonbury\">Glastonbury\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHartford_County,_Connecticut\" class=\"extiw\" title=\"en:Hartford County, Connecticut\">Hartford County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FConnecticut\" class=\"extiw\" title=\"en:Connecticut\">Connecticut\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-4565.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>A lustrous, 3 x 3 x 2.5 cm miniature of samarskite crystals. The Spinelli quarry (or prospect) gained recognition from early geochronology studies of U, Th & Pb isotopes, which estimated the age of this pegmatite at 260±3 million years. Identity of this particular specimen was confirmed in 2004 by x-ray analysis at the University of New Orleans. Acquired 1982 through Ward’s (Rochester, NY), ex Richard Schooner collection. 3.1 x 2.7 x 2.5 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",303,400,{"id":149,"source_url":150,"license_code":141,"credit_html":151,"title":152,"description":153,"author":145,"original_width":154,"original_height":155},21481,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10168896","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10168896\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Samarskite-(Y)-259507.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSamarskite\" class=\"extiw\" title=\"en:Samarskite\">Samarskite-(Y)\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Bird Rock claim (Bird Rock deposit; W. M. Keenan), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FLawson_Peak\" class=\"extiw\" title=\"en:Lawson Peak\">Lawson Peak\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Diego_County,_California\" class=\"extiw\" title=\"en:San Diego County, California\">San Diego County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalifornia\" class=\"extiw\" title=\"en:California\">California\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-91141.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 4.8 x 2.7 x 1.6 cm.\u003C\u002Fdd>\n\u003Cdd>This one threw me for a loop and I had to ask...it has been analyzed, by the way, to confirm it. It is a verified, bizarrely-crystallized samarskite from San Diego. It is the only one I know of, and is in form unlike any other samarskite I have seen. Leo was a major San Diego area collector, known for his breadth of local specimens. Ex. Chuck Houser and Leo Horensky Collections.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",513,800,{"id":157,"source_url":158,"license_code":141,"credit_html":159,"title":160,"description":161,"author":145,"original_width":162,"original_height":163},21482,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10170196","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10170196\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Samarskite-(Y)-Columbite-266268.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSamarskite\" class=\"extiw\" title=\"en:Samarskite\">Samarskite-(Y)\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FColumbite\" class=\"extiw\" title=\"en:Columbite\">Columbite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDivin%C3%A9sia\" class=\"extiw\" title=\"en:Divinésia\">Divinésia (ex-Divino de Ubá)\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMinas_Gerais\" class=\"extiw\" title=\"en:Minas Gerais\">Minas Gerais\u003C\u002Fa>, Southeast Region, Brazil (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-398.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 3.4 x 1.4 x 1.2 cm.\u003C\u002Fdd>\n\u003Cdd>Samarskite is an uncommon rare-earth oxide found in pegmatites. This is an excellent and very fine combination specimen from the much less well-known Divino de Uba pegmatite of Brazil. A sharp tan, orthorhombic, parallel-growth samarskite crystal hosts parallel slivers of lustrous, metallic columbite crystals. The samarskite crystal is pristine. Ex, Don Boydston Collection and accompanied by a 1950s-1960s-era Burminco label. A rare and seldom available combination piece from this less common locale.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",310,600,{"id":165,"source_url":166,"license_code":167,"credit_html":168,"title":169,"description":170,"author":171,"original_width":172,"original_height":173},21483,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11367579","CC BY 3.0","Kelly Nash, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11367579\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Samarskite-(Y) - Yancey Co, North Carolina, USA.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSamarskite-(Y)\" class=\"extiw\" title=\"en:Samarskite-(Y)\">Samarskite-(Y)\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Tom Ross Mine, Yancey County, North Carolina, USA\u003C\u002Fdd>\n\u003Cdd>Samarskite-Y, cluster of crystals, 3.3 x 2.8 x 1.7 cm. Label says from Tom Ross Mine in Yancey Co., North Carolina. Ex-Richard Hauck Collection. Quite radioactive (about 0.9 millirems\u002Fhr.) K. Nash specimen and image.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Kelly Nash",750,748,{"id":175,"source_url":176,"license_code":141,"credit_html":177,"title":178,"description":179,"author":145,"original_width":180,"original_height":181},21484,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=22187695","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=22187695\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Samarskite-(Y)-351417.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSamarskite\" class=\"extiw\" title=\"en:Samarskite\">Samarskite-(Y)\u003C\u002Fa> (Size: 4.6 x 4.6 x 3.0 cm)\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Setesdal, Aust-Agder, Norway\u003C\u002Fdd>\n\u003Cdd>A large, 3-dimensional, robust crystal of this very complex rare earth element containing species with niobium and tantalum in addition to uranium and other oddities mixed in. This is an older specimen, undoubtedly. Al obtained it in 1967 and it is labeled \"Setesdal\" although we cannot find a reference to this locality. It may instead be from a nearby and known location, as Setesdal seems to be a valley district and not a specific mine name. However, Bernard and Hyrsl’s “Minerals and their Localities” does include a listing for Setesdal. Ex. Al Ordway Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",768,867,{"id":183,"source_url":184,"license_code":185,"credit_html":186,"title":187,"description":188,"author":189,"original_width":190,"original_height":191},21486,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=50652116","CC0 1.0","Raúl Jorge Tauber Larry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=50652116\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Samarskite-(Yb)-474889.jpg","Samarskite(Yb).\n\u003Cp>Dimensions: 1 cm x 0.7 cm x 0.4 cm\nFrom \"Patsy\" Pegmatite, South Platte Pegmatite District, Jefferson County, Colorado, U.S.A.\n\u003C\u002Fp>\nRaúl Jorge Tauber Larry´s collection.","Raúl Jorge Tauber Larry",499,471,[],[194,195],"IMA2004-001","Samarskiet-(Yb)",[197,202,207,211],{"lang":198,"names":199},"ca",[200,201],"Samarskita-","samarskita-(Yb)",{"lang":203,"names":204},"de",[205,206],"IMA 2004-001","Samarskit-(Yb)",{"lang":208,"names":209},"eu",[200,210],"Samarskita-(Yb)",{"lang":212,"names":213},"it",[214,215],"Samarskite-","samarskite-(Yb)","Q19861251",{"history":11,"applications":11}]