[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:1370":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":11,"ima_formula":15,"elements":16,"sigelements":22,"key_elements":23,"impurities":24,"cim":25,"ima_status":26,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":29,"discovery_year":30,"strunz10ed1":31,"strunz10ed2":32,"strunz10ed3":33,"strunz10ed4":34,"dana8ed1":35,"dana8ed2":36,"dana8ed3":37,"dana8ed4":38,"csystem":39,"cclass":11,"spacegroup":11,"spacegroupset":40,"a":41,"b":42,"c":43,"alpha":40,"beta":40,"gamma":40,"aerror":11,"berror":11,"cerror":11,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":11,"csmetamict":13,"commentcrystal":44,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":11,"tlform":11,"hmin":45,"hmax":45,"hardtype":11,"vhnmin":40,"vhnmax":40,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":46,"dmeas2":47,"dcalc":48,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":49,"commentluster":11,"diapheny":50,"streak":11,"colour":51,"commentcolor":11,"colors":52,"streak_colors":11,"luminescence":11,"uv":11,"cleavage":59,"cleavagetype":60,"fracturetype":61,"tenacity":11,"commentbreak":11,"opticaltype":62,"opticalsign":63,"opticalalpha":64,"opticalalpha2":40,"opticalalphaerror":11,"opticalbeta":65,"opticalbeta2":66,"opticalbetaerror":11,"opticalgamma":67,"opticalgamma2":40,"opticalgammaerror":11,"opticalomega":40,"opticalomega2":40,"opticalomegaerror":11,"opticalepsilon":40,"opticalepsilon2":40,"opticalepsilonerror":11,"opticaln":40,"opticaln2":40,"opticalnerror":11,"optical2vcalc":40,"optical2vcalc2":40,"optical2vcalcerror":11,"optical2vmeasured":40,"optical2vmeasured2":40,"optical2vmeasurederror":11,"rimin":68,"rimax":69,"opticaldispersion":70,"opticalpleochroism":11,"opticalpleochorismdesc":11,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":71,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":11,"occurrence":11,"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":82,"associates":83,"confused_with":93,"type_localities":102,"occurrence_total":109,"citations":110,"images":171,"structures":300,"synonyms":317,"language_names":319,"wikidata_qid":354,"texts":355},1370,"1:1:1370:9","9fdbfbe1-54e8-4136-8c98-59ccce91c687","Elpidite","Epd",0,"mineral",null,3991,false,"Na\u003Csub>2\u003C\u002Fsub>ZrSi\u003Csub>6\u003C\u002Fsub>O\u003Csub>15\u003C\u002Fsub>·3H\u003Csub>2\u003C\u002Fsub>O","Na\u003Csub>2\u003C\u002Fsub>ZrSi\u003Csub>6\u003C\u002Fsub>O\u003Csub>15\u003C\u002Fsub> · 3H\u003Csub>2\u003C\u002Fsub>O",[17,18,19,20,21],"Na","Si","Zr","O","H",[17,18,19,20,21],[19],",Ti,Nb,Ca,K,F,Cl,,","14.10.9",[27,28],"APPROVED","GRANDFATHERED",1894,"1894","9","D","G","65","72","5","4","2","Orthorhombic","0","7.29","14.3","7.03","Space group of the hydrated (H\u003Csub>3\u003C\u002Fsub>O)-bearing) variety is Pma2",5,"2.52","2.62","2.59","Vitreous,Waxy,Silky,Dull","Transparent,Translucent,Opaque","Colorless, white, gray, yellowish, orange, brown, beige",[53,54,55,56,57,58],"colorless","white","gray","yellow","orange","brown","On {110}","Perfect","Splintery","Biaxial","+","1.56","1.565","1.569","1.574",1.56,1.574,"r \u003C v moderate","X = c; Y = b; Z = a.","University of Copenhagen, Copenhagen, Denmark.","A highly hydrated variety, bearing large admixture of hydronium ions, is known (Zubkova et al. 2021).","The name derives from the Greek word for \u003Cem>hope\u003C\u002Fem>, representing the hope that other interesting minerals would be found at the type locality.","2025-10-11 18:03:22",[77],{"id":78,"name":79,"entrytype":80,"csystem":11,"ima_formula":11,"mindat_formula":81,"hmin":11,"hmax":11,"dmeas":11,"dcalc":11,"primary_image_id":11},43427,"Calcium-bearing Elpidite",2,"(Na,Ca)\u003Csub>2\u003C\u002Fsub>ZrSi\u003Csub>6\u003C\u002Fsub>O\u003Csub>15\u003C\u002Fsub>·3H\u003Csub>2\u003C\u002Fsub>O",[],[84],{"id":85,"name":86,"entrytype":9,"csystem":87,"ima_formula":88,"mindat_formula":89,"hmin":45,"hmax":45,"dmeas":90,"dcalc":91,"primary_image_id":92},11458,"Gjerdingenite-Fe","Monoclinic","K\u003Csub>2\u003C\u002Fsub>Fe(Nb,Ti)\u003Csub>4\u003C\u002Fsub>(Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>12\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(O,OH)\u003Csub>4\u003C\u002Fsub> · 6H\u003Csub>2\u003C\u002Fsub>O","K\u003Csub>2\u003C\u002Fsub>Fe\u003Csup>2+\u003C\u002Fsup>(Nb,Ti)\u003Csub>4\u003C\u002Fsub>(Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>12\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(O,OH)\u003Csub>4\u003C\u002Fsub>·6H\u003Csub>2\u003C\u002Fsub>O","2.82","2.830",9966,[94],{"id":95,"name":96,"entrytype":9,"csystem":87,"ima_formula":97,"mindat_formula":98,"hmin":45,"hmax":45,"dmeas":99,"dcalc":100,"primary_image_id":101},46147,"Yusupovite","Na\u003Csub>2\u003C\u002Fsub>Zr(Si\u003Csub>6\u003C\u002Fsub>O\u003Csub>15\u003C\u002Fsub>)(H\u003Csub>2\u003C\u002Fsub>O)\u003Csub>3\u003C\u002Fsub>","Na\u003Csub>2\u003C\u002Fsub>Zr(Si\u003Csub>6\u003C\u002Fsub>O\u003Csub>15\u003C\u002Fsub>)·2.5H\u003Csub>2\u003C\u002Fsub>O","2.69","2.713",28602,[103],{"id":104,"txt":105,"latitude":106,"longitude":107,"country":108},1961,"Narssârssuk pegmatite, Narsaarsuk Plateau, Igaliku, Kujalleq, Greenland",61.0330556,-45.3777778,"Greenland",57,[111,114,118,122,126,130,134,138,143,148,152,156,161,166],{"id":112,"year":29,"html":113,"doi":11},15963552,"Lindström, G. (1894) Elpidit, ett nytt mineral från Igaliko, Geologiska Föreningens i Stockholm Förhandlingar, 16, 330-335.",{"id":115,"year":116,"html":117,"doi":11},16108296,1964,"Neronova, N.N., Belov, N.V. (1964) Crystal structure of elpidite, Na2Zr[Si6O15]·3H2O. Soviet Physics - Crystallography: 9: 700-705.",{"id":119,"year":120,"html":121,"doi":11},17075622,1967,"Chao, G. Y. (1967) Leucophanite, elpidite, and narsarsukite from the Desourdy quarry, Mont St. Hilaire, Quebec. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  9 (2) 286-287 \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Frruff_1.0\u002Fuploads\u002FCM9_286.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":123,"year":124,"html":125,"doi":11},525988,1973,"Cannillo, Elio, Rossi, Guiseppe, Ungaretti, Luciano (1973) The crystal structure of elpidite. \u003Ci>American Mineralogist\u003C\u002Fi>,  58 (1-2) 106-109 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM58\u002FAM58_106.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":127,"year":128,"html":129,"doi":11},16108299,1978,"Sapozhnikov, A.N., Kashaev, A.A. (1978) Features of the crystal structure of calcium-containing elpidite. Kristallografiya (Sov. Phys. Crystal.): 23: 52-65. (in Russian)",{"id":131,"year":132,"html":133,"doi":11},17063052,1985,"Currie, K. L., Zaleski, E. (1985) The relative stability of elpidite and vlasovite: a P-T indicator for peralkaline rocks. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  23 (4) 577-582 \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Frruff_1.0\u002Fuploads\u002FCM23_577.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":135,"year":136,"html":137,"doi":11},16964108,2001,"(2001) Elpidite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Felpidite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":139,"year":140,"html":141,"doi":142},116952,2008,"Merlino, Stefano, Bonaccorsi, Elena (2008) Double wollastonite chains: topological\u002Fconformational varieties, polytypic forms, isotypic compounds. \u003Ci>Zeitschrift für Kristallographie - Crystalline Materials\u003C\u002Fi>,  223 (1-2). 85-97 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.2008.0006'>doi:10.1524\u002Fzkri.2008.0006\u003C\u002Fa>","10.1524\u002Fzkri.2008.0006",{"id":144,"year":145,"html":146,"doi":147},15063414,2011,"Nedel’ko, V. V., Chukanov, N. V., Pekov, I. V. (2011) Dehydration kinetics of the microporous zirconosilicate elpidite. \u003Ci>Inorganic Materials\u003C\u002Fi>, 47 (5) 502-505 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1134\u002Fs0020168511050165'>doi:10.1134\u002Fs0020168511050165\u003C\u002Fa>","10.1134\u002Fs0020168511050165",{"id":149,"year":145,"html":150,"doi":151},15063419,"Zubkova, N. V., Ksenofontov, D. A., Kabalov, Yu. K., Chukanov, N. V., Nedel’ko, V. V., Pekov, I. V., Pushcharovsky, D. Yu. (2011) Dehydration-induced structural transformations of the microporous zirconosilicate elpidite. \u003Ci>Inorganic Materials\u003C\u002Fi>, 47 (5) 506-512 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1134\u002Fs0020168511050232'>doi:10.1134\u002Fs0020168511050232\u003C\u002Fa>","10.1134\u002Fs0020168511050232",{"id":153,"year":145,"html":154,"doi":155},620671,"Grigor’eva, A. A., Zubkova, N. V., Pekov, I. V., Kolitsch, U., Pushcharovsky, D. Yu., Vigasina, M. F., Giester, G., Dordević, T., Tillmanns, E., Chukanov, N. V. (2011) Crystal chemistry of elpidite from Khan Bogdo (Mongolia) and its K- and Rb-exchanged forms. \u003Ci>Crystallography Reports\u003C\u002Fi>,  56 (5) 832-841 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1134\u002Fs1063774511050117'>doi:10.1134\u002Fs1063774511050117\u003C\u002Fa>","10.1134\u002Fs1063774511050117",{"id":157,"year":158,"html":159,"doi":160},65292,2015,"Grice, Joel D., Rowe, Ralph, Poirier, Glenn (2015) Hydroterskite: A New Mineral Species From the Saint-Amable Sill, Quebec, and A Comparison With Terskite and Elpidite. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  53 (5) 821-832 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3749\u002Fcanmin.1400105'>doi:10.3749\u002Fcanmin.1400105\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Frruff_1.0\u002Fuploads\u002FCM53_821.pdf' class='refpdflink'>\u003C\u002Fa>","10.3749\u002Fcanmin.1400105",{"id":162,"year":163,"html":164,"doi":165},16978052,2016,"Cametti, Georgia, Armbruster, Thomas, Nagashima, Mariko (2016) Dehydration and thermal stability of elpidite: An in-situ single crystal X-ray diffraction study. \u003Ci>Microporous and Mesoporous Materials\u003C\u002Fi>,  227. 81-87 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fj.micromeso.2016.02.049'>doi:10.1016\u002Fj.micromeso.2016.02.049\u003C\u002Fa>","10.1016\u002Fj.micromeso.2016.02.049",{"id":167,"year":168,"html":169,"doi":170},13000038,2021,"Zubkova, Natalia V., Pekov, Igor V., Chukanov, Nikita V., Yapaskurt, Vasiliy O., Turchkova, Anna G., Larikova, Tatiana S., Pushcharovsky, Dmitry Yu. (2021) A highly hydrated variety of elpidite from the Khibiny alkaline complex, Kola Peninsula, Russia. \u003Ci>Mineralogical Magazine\u003C\u002Fi>, 85 (4) 627-633 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fmgm.2020.96'>doi:10.1180\u002Fmgm.2020.96\u003C\u002Fa>","10.1180\u002Fmgm.2020.96",[172,182,190,198,206,214,220,227,234,240,247,254,261,270,277,284,290],{"id":173,"source_url":174,"license_code":175,"credit_html":176,"title":177,"description":178,"author":179,"original_width":180,"original_height":181},7764,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10151751","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10151751\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Elpidite-177602.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FElpidite\" class=\"extiw\" title=\"en:Elpidite\">Elpidite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont_Saint-Hilaire\" class=\"extiw\" title=\"en:Mont Saint-Hilaire\">Mont Saint-Hilaire\u003C\u002Fa>, Rouville RCM, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont%C3%A9r%C3%A9gie\" class=\"extiw\" title=\"en:Montérégie\">Montérégie\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuebec\" class=\"extiw\" title=\"en:Quebec\">Québec\u003C\u002Fa>, Canada (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-599.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 5.5 x 4.3 x 3.5 cm.\u003C\u002Fdd>\n\u003Cdd>This is a very rich specimen of the relatively rare hydrated sodium zirconium silicate Elpidite, seen here in a specimen from the prolific Mont Saint - Hilaire locality. They are often seen in single sprays without matrix, but these sprays do occur on matrix and are remarkably well-defined with individual blades up to 2 cm long. Ex. Martin Lewadny Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",600,524,{"id":183,"source_url":184,"license_code":185,"credit_html":186,"title":187,"description":11,"author":11,"original_width":188,"original_height":189},29656,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F164881","CC BY-SA 4.0","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F164881\" rel=\"noopener\">University of Tartu, Natural History Museum\u003C\u002Fa> via Europeana","elpidite",1000,750,{"id":191,"source_url":192,"license_code":175,"credit_html":193,"title":194,"description":195,"author":179,"original_width":196,"original_height":197},53243,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10126588","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10126588\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Elpidite-38302.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FElpidite\" class=\"extiw\" title=\"en:Elpidite\">Elpidite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont_Saint-Hilaire\" class=\"extiw\" title=\"en:Mont Saint-Hilaire\">Mont Saint-Hilaire\u003C\u002Fa>, Rouville RCM, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont%C3%A9r%C3%A9gie\" class=\"extiw\" title=\"en:Montérégie\">Montérégie\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuebec\" class=\"extiw\" title=\"en:Quebec\">Québec\u003C\u002Fa>, Canada (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-599.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>This is a rich specimen of the relatively rare hydrated sodium zirconium silicate elpidite, seen here in a specimen from the prolific Mt. St. Hilaire locality. (The elpidites are the thin, acicular crystals.) They are often seen in single sprays without matrix, but this specimen shows more of a \"haystack\" of separate crystals. 5.3 x 4.9 x 2.8 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",650,525,{"id":199,"source_url":200,"license_code":175,"credit_html":201,"title":202,"description":203,"author":179,"original_width":204,"original_height":205},7765,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10152373","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10152373\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Elpidite-179396.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FElpidite\" class=\"extiw\" title=\"en:Elpidite\">Elpidite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont_Saint-Hilaire\" class=\"extiw\" title=\"en:Mont Saint-Hilaire\">Mont Saint-Hilaire\u003C\u002Fa>, Rouville RCM, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont%C3%A9r%C3%A9gie\" class=\"extiw\" title=\"en:Montérégie\">Montérégie\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuebec\" class=\"extiw\" title=\"en:Quebec\">Québec\u003C\u002Fa>, Canada (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-599.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 4.6 x 1.1 x 0.7 cm.\u003C\u002Fdd>\n\u003Cdd>A beautiful, complete all-around spray of the relatively rare hydrated sodium zirconium silicate elpidite. This fine specimen is from the prolific Mt. St. Hilaire locality. The gemmy and lustrous, gray-white, acicular crystals are pearlescent. Ex Marty Lewadny Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",293,450,{"id":207,"source_url":208,"license_code":175,"credit_html":209,"title":210,"description":211,"author":179,"original_width":212,"original_height":213},7766,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10170888","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10170888\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Elpidite-271076.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FElpidite\" class=\"extiw\" title=\"en:Elpidite\">Elpidite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont_Saint-Hilaire\" class=\"extiw\" title=\"en:Mont Saint-Hilaire\">Mont Saint-Hilaire\u003C\u002Fa>, Rouville RCM, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont%C3%A9r%C3%A9gie\" class=\"extiw\" title=\"en:Montérégie\">Montérégie\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuebec\" class=\"extiw\" title=\"en:Quebec\">Québec\u003C\u002Fa>, Canada (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-599.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 6.2 x 4.8 x 3.7 cm.\u003C\u002Fdd>\n\u003Cdd>Sprays of pearlescent, gray-white, acicular to bladed elpidite crystals richly cover all sides of the vuggy matrix on this very fine specimen from the prolific Mt. St. Hilaire locality. Elpidite is a relatively rare hydrated sodium zirconium silicate and this is a really good and rich one. Ex. Martin Lewadny Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",700,594,{"id":215,"source_url":216,"license_code":175,"credit_html":217,"title":218,"description":211,"author":179,"original_width":212,"original_height":219},53244,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10151753","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10151753\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Elpidite-177603.jpg",549,{"id":221,"source_url":222,"license_code":175,"credit_html":223,"title":224,"description":225,"author":179,"original_width":180,"original_height":226},7767,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10451984","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10451984\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Elpidite-lw78a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FElpidite\" class=\"extiw\" title=\"en:Elpidite\">Elpidite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont_Saint-Hilaire\" class=\"extiw\" title=\"en:Mont Saint-Hilaire\">Mont Saint-Hilaire\u003C\u002Fa>, Rouville RCM, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont%C3%A9r%C3%A9gie\" class=\"extiw\" title=\"en:Montérégie\">Montérégie\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuebec\" class=\"extiw\" title=\"en:Quebec\">Québec\u003C\u002Fa>, Canada (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-599.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: small cabinet, 6.3 x 4.7 x 3.9 cm\n\u003Cdl>\u003Cdt>Elpidite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This delicate specimen consists of a large number of intergrown crystals of Elpidite, a relatively rare hydrated sodium zirconium silicate. The Elpidite crystals have a slightly silky luster with attractive striations parallel to the c-axis. You don�t often find such rich aggregates of crystals. An excellent specimen from a world-famous mine.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",423,{"id":228,"source_url":229,"license_code":175,"credit_html":230,"title":231,"description":225,"author":179,"original_width":232,"original_height":233},7768,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10451985","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10451985\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Elpidite-lw78b.jpg",251,400,{"id":235,"source_url":236,"license_code":175,"credit_html":237,"title":238,"description":225,"author":179,"original_width":180,"original_height":239},7769,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10451986","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10451986\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Elpidite-lw78c.jpg",503,{"id":241,"source_url":242,"license_code":175,"credit_html":243,"title":244,"description":245,"author":179,"original_width":233,"original_height":246},53245,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10451339","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10451339\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Elpidite-lw11b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FElpidite\" class=\"extiw\" title=\"en:Elpidite\">Elpidite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont_Saint-Hilaire\" class=\"extiw\" title=\"en:Mont Saint-Hilaire\">Mont Saint-Hilaire\u003C\u002Fa>, Rouville RCM, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont%C3%A9r%C3%A9gie\" class=\"extiw\" title=\"en:Montérégie\">Montérégie\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuebec\" class=\"extiw\" title=\"en:Quebec\">Québec\u003C\u002Fa>, Canada (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-123123.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 5.5 x 4.3 x 3.5 cm\n\u003Cdl>\u003Cdt>Elpidite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This is a very rich specimen of the relatively rare hydrated sodium zirconium silicate Elpidite, seen here in a specimen from the prolific Mont Saint - Hilaire locality. They are often seen in single sprays without matrix, but these sprays do occur on matrix and are remarkably well-defined with individual blades up to 2 cm long!\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",322,{"id":248,"source_url":249,"license_code":175,"credit_html":250,"title":251,"description":252,"author":179,"original_width":253,"original_height":180},7770,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10453389","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10453389\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Elpidite-mrz233a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FElpidite\" class=\"extiw\" title=\"en:Elpidite\">Elpidite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont_Saint-Hilaire\" class=\"extiw\" title=\"en:Mont Saint-Hilaire\">Mont Saint-Hilaire\u003C\u002Fa>, Rouville RCM, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont%C3%A9r%C3%A9gie\" class=\"extiw\" title=\"en:Montérégie\">Montérégie\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuebec\" class=\"extiw\" title=\"en:Quebec\">Québec\u003C\u002Fa>, Canada (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-123123.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 5 x 1 x 0.3 cm\n\u003Cdl>\u003Cdt>Elpidite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Unusually large, elongated elpidite crystals from this important locale.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",289,{"id":255,"source_url":256,"license_code":175,"credit_html":257,"title":258,"description":259,"author":179,"original_width":260,"original_height":180},7771,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10453434","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10453434\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Elpidite-mrz269a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FElpidite\" class=\"extiw\" title=\"en:Elpidite\">Elpidite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont_Saint-Hilaire\" class=\"extiw\" title=\"en:Mont Saint-Hilaire\">Mont Saint-Hilaire\u003C\u002Fa>, Rouville RCM, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont%C3%A9r%C3%A9gie\" class=\"extiw\" title=\"en:Montérégie\">Montérégie\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuebec\" class=\"extiw\" title=\"en:Quebec\">Québec\u003C\u002Fa>, Canada (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-123123.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 5.6 x 1 x 0.3 cm\n\u003Cdl>\u003Cdt>Elpidite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Unusually large, elongated elpidite crystals from this important locale.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",232,{"id":262,"source_url":263,"license_code":175,"credit_html":264,"title":265,"description":266,"author":267,"original_width":268,"original_height":269},53249,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=15274488","Vassia Atanassova - Spiritia, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=15274488\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Earth-and-Man--Elpidite.jpg","Piece of the mineral \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002Felpidite\" class=\"extiw\" title=\"en:elpidite\">elpidite\u003C\u002Fa>.  Exhibit of the National \"Earth and Man\" Museum in Sofia, Bulgaria. Discovered in Lovozero, Kola Peninsula, Russia.","Vassia Atanassova - Spiritia",1195,1222,{"id":271,"source_url":272,"license_code":175,"credit_html":273,"title":274,"description":275,"author":179,"original_width":276,"original_height":233},53246,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10460914","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10460914\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Elpidite-Nenadkevichite-Rhodochrosite-rare08-2-65c.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FElpidite\" class=\"extiw\" title=\"en:Elpidite\">Elpidite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNenadkevichite\" class=\"extiw\" title=\"en:Nenadkevichite\">Nenadkevichite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FRhodochrosite\" class=\"extiw\" title=\"en:Rhodochrosite\">Rhodochrosite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont_Saint-Hilaire\" class=\"extiw\" title=\"en:Mont Saint-Hilaire\">Mont Saint-Hilaire\u003C\u002Fa>, Rouville RCM, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMont%C3%A9r%C3%A9gie\" class=\"extiw\" title=\"en:Montérégie\">Montérégie\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuebec\" class=\"extiw\" title=\"en:Quebec\">Québec\u003C\u002Fa>, Canada (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-123123.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 3.1 x 2.1 x 1.7 cm\n\u003Cdl>\u003Cdt>Nenadkevichite with Rhodochrosite, Aegerine, Elpidite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This specimen contains what are by far and away among the largest reported crystals of the species, as do other specimens from the remarkable find of 2003 by MSH specialist collector Gilles Haineult. These crystals are to 8 mm in size and are nice and fat as well, with sharp terminations and good lustre! Previous examples have usually been at the 1-2mm size level or less! These are off the charts for the species. The matrix was extremely loose in the pocket and so nearly all recovered specimens are thumbnails (from which I cherrypicked the best 10 or so back at the time). This was one of the best larger specimens (in terms of XL size and overall coverage) of any I know to have sold, all of which were collected by Haineault in July of 2003. However, I missed out on this particular specimen which went into the MSH collection of James Zigras, from whom I recently obtained it in exchange. The identity has been solidly confirmed and they stand as exceptionally beautiful and significant examples of the species. Matrix associations include superb twinned epidiymite crystals and aegerine.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",278,{"id":278,"source_url":279,"license_code":175,"credit_html":280,"title":281,"description":275,"author":179,"original_width":282,"original_height":283},53247,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10460916","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10460916\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Elpidite-Nenadkevichite-Rhodochrosite-rare08-2-65a.jpg",800,548,{"id":285,"source_url":286,"license_code":175,"credit_html":287,"title":288,"description":275,"author":179,"original_width":282,"original_height":289},53248,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10460919","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10460919\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Elpidite-Nenadkevichite-Rhodochrosite-rare08-2-65b.jpg",567,{"id":291,"source_url":292,"license_code":293,"credit_html":294,"title":295,"description":296,"author":297,"original_width":298,"original_height":299},2177,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=56669611","Public domain","Modris Baum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=56669611\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Elpidite, Ashcroftine-(Y), Calcite-531182.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FElpidite\" class=\"extiw\" title=\"en:Elpidite\">Elpidite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAshcroftine-(Y)\" class=\"extiw\" title=\"en:Ashcroftine-(Y)\">Ashcroftine-(Y)\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalcite\" class=\"extiw\" title=\"en:Calcite\">Calcite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire; MSH), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada\u003C\u002Fdd>\n\u003Cdd>Very dark gray\u002Fgreen elpidite xls 5+ mm (not quite all shown). MOB coll. There are plenty of better elpidite photos on Mindat. But many of them show xls with pinacoidal terminations from the Poudrette pegmatite. The xls in this photo may be of interest because they are from igneous breccia, few if any examples of which have been posted, and are associated with very rare ashcroftine-(Y) (acicular pale violet stuff). The greenish yellow stuff is calcite.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Modris Baum",763,1024,[301,307,312],{"id":302,"url":303,"label":304,"formula":305,"spacegroup":306,"year":145},4083,"\u002Fcif\u002F4083.cif","Grigor 2011 · Na2 Zr Si6 O18 H6","Na2 Zr Si6 O18 H6","P b c m",{"id":308,"url":309,"label":310,"formula":311,"spacegroup":306,"year":145},4084,"\u002Fcif\u002F4084.cif","Grigor 2011 · Na1.581 Rb.2 Zr Si6 O17.69 H5.38","Na1.581 Rb.2 Zr Si6 O17.69 H5.38",{"id":313,"url":314,"label":315,"formula":316,"spacegroup":306,"year":124},4085,"\u002Fcif\u002F4085.cif","Cannillo 1973","Zr Si6 Na2 O18 H6",[318],"Elpidiet",[320,324,328,332,336,339,342,346,350],{"lang":321,"names":322},"ca",[323],"elpidita",{"lang":325,"names":326},"de",[327],"Elpidit",{"lang":329,"names":330},"et",[331],"elpidiit",{"lang":333,"names":334},"eu",[335],"Elpidita",{"lang":337,"names":338},"fr",[187],{"lang":340,"names":341},"it",[7],{"lang":343,"names":344},"nb",[345],"elpiditt",{"lang":347,"names":348},"nn",[349],"Elpiditt",{"lang":351,"names":352},"sl",[353],"elpidit","Q3723655",{"history":11,"applications":11}]