[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:3397":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":23,"key_elements":24,"impurities":11,"cim":25,"ima_status":26,"ima_notes":28,"ima_history":11,"approval_year":11,"publication_year":30,"discovery_year":31,"strunz10ed1":32,"strunz10ed2":33,"strunz10ed3":34,"strunz10ed4":35,"dana8ed1":36,"dana8ed2":37,"dana8ed3":38,"dana8ed4":39,"csystem":40,"cclass":41,"spacegroup":42,"spacegroupset":43,"a":44,"b":43,"c":45,"alpha":43,"beta":43,"gamma":43,"aerror":46,"berror":11,"cerror":46,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":11,"csmetamict":14,"commentcrystal":47,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":48,"tlform":11,"hmin":49,"hmax":49,"hardtype":11,"vhnmin":43,"vhnmax":43,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":50,"dmeas2":51,"dcalc":52,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":53,"lustretype":54,"commentluster":11,"diapheny":55,"streak":56,"colour":57,"commentcolor":58,"colors":59,"streak_colors":65,"luminescence":11,"uv":11,"cleavage":11,"cleavagetype":66,"fracturetype":67,"tenacity":68,"commentbreak":11,"opticaltype":69,"opticalsign":70,"opticalalpha":43,"opticalalpha2":43,"opticalalphaerror":11,"opticalbeta":43,"opticalbeta2":43,"opticalbetaerror":11,"opticalgamma":43,"opticalgamma2":43,"opticalgammaerror":11,"opticalomega":71,"opticalomega2":72,"opticalomegaerror":11,"opticalepsilon":73,"opticalepsilon2":74,"opticalepsilonerror":11,"opticaln":43,"opticaln2":43,"opticalnerror":11,"optical2vcalc":43,"optical2vcalc2":43,"optical2vcalcerror":11,"optical2vmeasured":43,"optical2vmeasured2":43,"optical2vmeasurederror":11,"rimin":75,"rimax":76,"opticaldispersion":11,"opticalpleochroism":77,"opticalpleochorismdesc":78,"opticalbirefringence":79,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":80,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":81,"industrial":11,"occurrence":82,"otheroccurrence":83,"type_specimen_store":84,"description_short":85,"aboutname":86,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":87,"reviewed_at":11,"variety_of":11,"varieties":88,"group_members":94,"associates":137,"confused_with":138,"type_localities":139,"occurrence_total":146,"citations":147,"images":207,"structures":248,"synonyms":262,"language_names":268,"wikidata_qid":296,"texts":297},3397,"1:1:3397:4","837898c2-cc50-491a-ad18-2a6a056f7069","Rhabdophane-(Ce)","Rha-Ce",0,"mineral",null,29326,1634,false,"Ce(PO\u003Csub>4\u003C\u002Fsub>)·0.6H\u003Csub>2\u003C\u002Fsub>O","Ce is almost always partly replaced by La, Nd and other REE.\r\nWater content is given inconsistently in the literature (1H\u003Csub>2\u003C\u002Fsub>O or 0.5H\u003Csub>2\u003C\u002Fsub>O). Redetermination of the crystal structure, including a revision of the space group, gave 0.62(2)H\u003Csub>2\u003C\u002Fsub>O (Kolitsch, 2021). Isostructural with BiPO4·0.67H\u003Csub>2\u003C\u002Fsub>O (Romero et al., 1994).","Ce(PO\u003Csub>4\u003C\u002Fsub>) · H\u003Csub>2\u003C\u002Fsub>O",[19,20,21,22],"Ce","O","P","H",[19,20,21,22],[19],"19.9.6",[27],"APPROVED",[29],"RENAMED",1878,"1878","8","C","J","45","40","4","7","1","Trigonal",12,89,"0","7.037","6.429",1,"Space group and cell from Kolitsch (2021). Originally assumed to have space group P6222, with a = 7.07(2) and c = 19.06(5) Å.","Occurs as incrustations, botryoidal, globular, or stalactitic forms with radial-fibrous structure. Short rod-like simple hexagonal crystals.",3.5,"3.77","4.01","4.19","Greasy","Resinous,Waxy,Greasy,Dull","Translucent","Colorless when pure","Brown, pale pink, yellowish-white; pale gray, fibers may be colourless in transmitted light.","May be stained by iron oxides",[60,61,62,63,64],"brown","pink","yellow","gray","colorless",[64],"None Observed","Irregular\u002FUneven,Sub-Conchoidal","brittle","Uniaxial","+","1.654","1.700","1.703","1.744",1.654,1.744,"Visible","Colorless, E tan to light brown","0.050","Parallel","Readily soluble in HCl.","Vein copper ore deposit.","An uncommon late-stage mineral in almost all of its occurrences: nepheline syenite pegmatites, polymetallic veins, also rarely from granite pegmatites, has been found in limonite beds","Muséum Nationale d’Histoire Naturelle, Paris, France, number 77.319 (type).","Rhabdophane Group.\r\nThe most common member in this group.","Originally called simply rhabdophane and named in 1878 by William Garrow Lettsom from the Greek, ραβδοζ, a rod, plus φαιυεσθαι, to appear, in allusion to the bands characteristically exhibited in its spectrum. In 1966 the suffix\u002Fmodifier was added to differentiate it from Nd dominant rhabdophane. The modifier \"-(Ce)\" indicates the predominance of cerium over other REE in this species.","2025-12-13 12:34:26",[89],{"id":90,"name":91,"entrytype":92,"csystem":11,"ima_formula":11,"mindat_formula":93,"hmin":11,"hmax":11,"dmeas":43,"dcalc":11,"primary_image_id":11},10976,"Lead-bearing Rhabdophane-(Ce)",2,"(Ce,La,Pb)(PO\u003Csub>4\u003C\u002Fsub>)·H\u003Csub>2\u003C\u002Fsub>O",[95,105,112,118,123,129],{"id":96,"name":97,"entrytype":9,"csystem":98,"ima_formula":99,"mindat_formula":100,"hmin":101,"hmax":102,"dmeas":103,"dcalc":43,"primary_image_id":104},780,"Brockite","Hexagonal","(Ca,Th,Ce)(PO\u003Csub>4\u003C\u002Fsub>) · H\u003Csub>2\u003C\u002Fsub>O","(Ca,Th,Ce)PO\u003Csub>4\u003C\u002Fsub>·H\u003Csub>2\u003C\u002Fsub>O",3,4,"3.9",3972,{"id":106,"name":107,"entrytype":9,"csystem":98,"ima_formula":108,"mindat_formula":109,"hmin":11,"hmax":11,"dmeas":43,"dcalc":110,"primary_image_id":111},1743,"Grayite","(Th,Pb,Ca)(PO\u003Csub>4\u003C\u002Fsub>) · H\u003Csub>2\u003C\u002Fsub>O","(Th,Pb,Ca)(PO\u003Csub>4\u003C\u002Fsub>)·H\u003Csub>2\u003C\u002Fsub>O","6.41",3974,{"id":113,"name":114,"entrytype":9,"csystem":98,"ima_formula":115,"mindat_formula":116,"hmin":49,"hmax":49,"dmeas":43,"dcalc":43,"primary_image_id":117},3398,"Rhabdophane-(La)","La(PO\u003Csub>4\u003C\u002Fsub>) · H\u003Csub>2\u003C\u002Fsub>O","La(PO\u003Csub>4\u003C\u002Fsub>)·H\u003Csub>2\u003C\u002Fsub>O",20796,{"id":119,"name":120,"entrytype":9,"csystem":98,"ima_formula":121,"mindat_formula":122,"hmin":49,"hmax":49,"dmeas":43,"dcalc":43,"primary_image_id":11},3399,"Rhabdophane-(Nd)","Nd(PO\u003Csub>4\u003C\u002Fsub>) · H\u003Csub>2\u003C\u002Fsub>O","Nd(PO\u003Csub>4\u003C\u002Fsub>)·H\u003Csub>2\u003C\u002Fsub>O",{"id":124,"name":125,"entrytype":9,"csystem":98,"ima_formula":126,"mindat_formula":127,"hmin":11,"hmax":11,"dmeas":11,"dcalc":128,"primary_image_id":11},42532,"Rhabdophane-(Y)","Y(PO\u003Csub>4\u003C\u002Fsub>) · H\u003Csub>2\u003C\u002Fsub>O","YPO\u003Csub>4\u003C\u002Fsub>·H\u003Csub>2\u003C\u002Fsub>O","4.54",{"id":130,"name":131,"entrytype":9,"csystem":98,"ima_formula":132,"mindat_formula":133,"hmin":101,"hmax":102,"dmeas":134,"dcalc":135,"primary_image_id":136},4025,"Tristramite","(Ca,U\u003Csup>4+\u003C\u002Fsup>,Fe\u003Csup>3+\u003C\u002Fsup>)(PO\u003Csub>4\u003C\u002Fsub>,SO\u003Csub>4\u003C\u002Fsub>) · 2H\u003Csub>2\u003C\u002Fsub>O","(Ca,U,Fe)(PO\u003Csub>4\u003C\u002Fsub>,SO\u003Csub>4\u003C\u002Fsub>)·2H\u003Csub>2\u003C\u002Fsub>O","3.8","4.18",24550,[],[],[140],{"id":141,"txt":142,"latitude":143,"longitude":144,"country":145},1206,"Fowey Consols (incl. Wheal Treasure; Wheal Fortune; Wheal Chance), Tywardreath and Par, Cornwall, England, UK",50.37,-4.6958333,"UK",84,[148,151,154,158,162,165,169,174,179,183,187,191,195,199,203],{"id":149,"year":30,"html":150,"doi":11},16121747,"Lettsom, W.G. (1878) Rabdophan. Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 3: 191-191 (as Rhabdophane).",{"id":152,"year":30,"html":153,"doi":11},16121748,"Lecoq d Boisbaudran (1878) Comptes rendu de l’Académie des sciences de Paris: 86: 1028 (as Rhabdophane).",{"id":155,"year":156,"html":157,"doi":11},16121749,1880,"Bertrand, E. (1880) Du type cristallin auquel on doit rapporter le Rhabdophane, d'après les propriétés optiques que présentent les corps cristallisés affectant la forme sphérolitique. Bulletin de la Société française de Minéralogie: 3: 58-62.",{"id":159,"year":160,"html":161,"doi":11},16121750,1882,"Hartley, W.N. (1882) The analysis of rhabdophane, a new British mineral. Journal of the Chemical Society, 41, 210-220.",{"id":163,"year":160,"html":164,"doi":11},16121752,"Lettsom, W.G. (1882) Proceedings of the Crystallological Society, London: 105 (as Rhabdophane).",{"id":166,"year":167,"html":168,"doi":11},16121751,1884,"Hartley (1884) Journal of the Chemical Society, London: 45: 167.",{"id":170,"year":171,"html":172,"doi":173},5308,1885,"Lettsom, W. G. (1885) On Rhabdophane, a New Mineral. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  6 (2). 105-108 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1885.006.2.10'>doi:10.1180\u002Fminmag.1885.006.2.10\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_6\u002F6-2-105.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1885.006.2.10",{"id":175,"year":176,"html":177,"doi":178},462749,1950,"Mooney, R. C. L. (1950) X-ray diffraction study of cerous phosphate and related crystals. I. Hexagonal modification. \u003Ci>Acta Crystallographica\u003C\u002Fi>,  3 (5) 337-340 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs0365110x50000963'>doi:10.1107\u002Fs0365110x50000963\u003C\u002Fa>","10.1107\u002Fs0365110x50000963",{"id":180,"year":181,"html":182,"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":184,"year":185,"html":186,"doi":11},524428,1966,"Levinson, A. A. (1966) A system of nomenclature for rare-earth minerals. \u003Ci>American Mineralogist\u003C\u002Fi>,  51 (1-2) 152-158 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM51\u002FAM51_152.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":188,"year":189,"html":190,"doi":11},16100914,1980,"Fleischer, M., Cabri, L. J., Chao, G. Y., Pabst, A. (1980) New mineral names. \u003Ci>American Mineralogist\u003C\u002Fi>,  65 (9-10). 1065-1070 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM65\u002FAM65_1065.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":192,"year":193,"html":194,"doi":11},16121756,1994,"Romero, B., Bruque, S., Aranda, M.A.G., Iglesias, J.E. (1994): Syntheses, crystal structures, and characterization of bismuth phosphates. Inorganic Chemistry, 33, 1869-1874.",{"id":196,"year":197,"html":198,"doi":11},15952221,2003,"Walenta, K. (2003): Monokliner bleihaltiger Rhabdophan von der Grube Clara im mittleren Schwarzwald. Aufschluss 54, 405-409 (in German).",{"id":200,"year":201,"html":202,"doi":11},16966977,2005,"(2005) Rhabdophane-(Ce). \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Frhabdophane-Ce.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":204,"year":205,"html":206,"doi":11},16121758,2021,"Kolitsch, U. (2021): Revision of the crystal structure of rhabdophane-(Ce). Poster, MinPet 2021, Vienna, Austria, September 19-21, 2021; abstract in Mitt. Österr. Mineral. Ges. 167, 116.",[208,218,225,233,240],{"id":209,"source_url":210,"license_code":211,"credit_html":212,"title":213,"description":214,"author":215,"original_width":216,"original_height":217},15714,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17411657","Public domain","Modris Baum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17411657\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Rhabdophane-(Ce), Serandite-185245.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FRhabdophane-(Ce)\" class=\"extiw\" title=\"en:Rhabdophane-(Ce)\">Rhabdophane-(Ce)\u003C\u002Fa> and \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FS%C3%A9randite\" class=\"extiw\" title=\"en:Sérandite\">Sérandite\u003C\u002Fa> (FOV 2.4 x 2.8 mm)\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada\u003C\u002Fdd>\n\u003Cdd>\u003Ci>Original description:\u003C\u002Fi> Rhabdophane-(Ce) \"xls\" of this sort are probably always pseudomorphs at MSH. The precursor remains unknown. The serandite is in the pink background. Pavel Kartashov made several microprobes of PS from another find but was unable to detect any relict precursor material. From the morphology he speculates that the precursor might have been mckelveyite-(Y) or a related mineral.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Modris Baum",540,630,{"id":219,"source_url":220,"license_code":211,"credit_html":221,"title":222,"description":223,"author":215,"original_width":224,"original_height":217},3971,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17411769","Modris Baum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17411769\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Rhabdophane-(Ce)-164858.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FRhabdophane-(Ce)\" class=\"extiw\" title=\"en:Rhabdophane-(Ce)\">Rhabdophane-(Ce)\u003C\u002Fa> (FOV 3.5 x 2.2 mm)\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada\u003C\u002Fdd>\n\u003Cdd>\u003Ci>Original description:\u003C\u002Fi> Preliminary analysis at Laurentian University suggested brockite but more detailed chemistry performed by the Canadian Museum of Nature showed that it was still rhabdophane-(Ce). Note that per Pavel Kartashov and Laszlo Horvath all MSH rhabdophane-(Ce) is pseudomorphous.\u003C\u002Fdd>\n\u003Cdd>Update July 18, 2008. Pavel kindly microprobed a sample of this material and found ((Ce.28La.16Nd.07Pr.03Eu.01Gd.01Sm.01).56Ca.33Sr.10Ba.01)1.00 which confirms the abnormally calcian nature of this find. The material is unusual in anion content as well.\u003C\u002Fdd>\n\u003Cdd>The material is porous and no trace of the precursor could be found.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",1012,{"id":226,"source_url":227,"license_code":211,"credit_html":228,"title":229,"description":230,"author":215,"original_width":231,"original_height":232},20794,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17411859","Modris Baum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17411859\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Rhabdophane-(Ce)-164859.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FRhabdophane-(Ce)\" class=\"extiw\" title=\"en:Rhabdophane-(Ce)\">Rhabdophane-(Ce)\u003C\u002Fa> (FOV 1.8 x 1.2 mm)\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada\u003C\u002Fdd>\n\u003Cdd>\u003Ci>Original description:\u003C\u002Fi> There was a great deal of rhabdophane-(Ce) in this find but most of it was not well crystalyzed. This is one of the better isolated xls. Associated minerals included acicular radiating epididymite (XRD) and pyrochlore coated with a grainy yellow substance (not analyzed). These minerals are not visible in these photos.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",979,653,{"id":234,"source_url":235,"license_code":211,"credit_html":236,"title":237,"description":238,"author":215,"original_width":239,"original_height":232},20795,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17411919","Modris Baum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=17411919\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Rhabdophane-(Ce)-164856.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FRhabdophane-(Ce)\" class=\"extiw\" title=\"en:Rhabdophane-(Ce)\">Rhabdophane-(Ce)\u003C\u002Fa> (FOV 2.2 x 2.8 mm)\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada\u003C\u002Fdd>\n\u003Cdd>\u003Ci>Original description:\u003C\u002Fi> The habit is somewhat similar to that shown in \u003Ca rel=\"nofollow\" class=\"external free\" href=\"http:\u002F\u002Fwww.mindat.org\u002Fphoto-162165.html\">http:\u002F\u002Fwww.mindat.org\u002Fphoto-162165.html\u003C\u002Fa> (Steve Stuart).\u003C\u002Fdd>\n\u003Cdd>Per Pavel Kartashov and Laszlo Horvath all MSH rhabdophane-(Ce) is pseudomorphous. The precursor is not known. This \"water tank\" sits on analcime with only a broken aegirine xl for support. It has not been analyzed.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",464,{"id":241,"source_url":242,"license_code":211,"credit_html":243,"title":244,"description":245,"author":215,"original_width":246,"original_height":247},9118,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=109194352","Modris Baum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=109194352\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Rhabdophane-(Ce), Epididymite, Fluorcalciopyrochlore, Albite, Aegirine, Lorenzenite.png","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FRhabdophane-(Ce)\" class=\"extiw\" title=\"en:Rhabdophane-(Ce)\">Rhabdophane-(Ce)\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFluorcalciopyrochlore\" class=\"extiw\" title=\"en:Fluorcalciopyrochlore\">Fluorcalciopyrochlore\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAlbite\" class=\"extiw\" title=\"en:Albite\">Albite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAegirine\" class=\"extiw\" title=\"en:Aegirine\">Aegirine\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FLorenzenite\" class=\"extiw\" title=\"en:Lorenzenite\">Lorenzenite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Field of view: 6.3 x 4.6 mm\u003C\u002Fdd>\n\u003Cdd>Locality: Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada\u003C\u002Fdd>\n\u003Cdd>Description: Found Nov 2001. “Fuzzy” orange fluorcalciopyrochlore on black aegirine with partly transparent pink albite (to 3.7 mm). The small tan needles on aegirine which can be seen in the gap between the two main albite crystals are lorenzenite, some apparently epitactic. (The lorenzenite has been verified via EDS. See \u003Ca rel=\"nofollow\" class=\"external autonumber\" href=\"https:\u002F\u002Fwww.mindat.org\u002Fphoto-842285.html\">[1]\u003C\u002Fa> for a better example and an EDS scan.) The pyrochlore is clearly “fuzzy” because it is encrusted by more pyrochlore of similar compositio. There are a very few \"naked\" crystals (not on this specimen) that also appear to be yellowish. However, some of the crust can be removed with HCl, suggesting that it is cemented by calcite.\u003Cbr>Update April 2017: Quick and dirty EDS of uncoated samples on matrix seemed to show very high Ta for both the \"crust\" and the \"naked\" crystals (after removal of crust). For the \"naked\" crystals, peak heights for Ta > Nb were oberved, which would suggest \"microlite group\". However, consultation with a mineralogist very familiar with \"pyrochlore\" at MSH, strongly suggests that the \"Ta\" peaks are really \"Si\", and that this is just \"pyrochlore\" with lots of Si. According to the expert, high levels of Si have been found repeatedly in MSH pyrochlores. It is not know if this is because the pyrochlore is metamict or because Si has actually been incorporated into the pyrochlore structure (as has been suggested by some.)\u003Cbr>See the Analysis \"photos\" Feb 2018: The two \"pyrochlore\" species now confirmed at MSH are fluornatropyrochlore and fluorcalciopyrochlore, assuming that this too is a \"fluor-pyrochlore\" (EDS can't tell), it seems more likely that it is fluorcalciopyrochlore than fluornatropyrochlore. However, Na is detected with difficulty and its seeming near absence in the scans could be misleading. Nonetheless, I have tentatively changed the caption from \"pyrochlore group\" to \"fluorcalciopyrochlore\". Associated with abundant rhabdophane-(Ce) and acicular epididymite (both analyzed) with “bitumen” in a very dirty pegmatite. See the \"related\" (same minID) photos.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",864,621,[249,255],{"id":250,"url":251,"label":252,"formula":253,"spacegroup":254,"year":176},12017,"\u002Fcif\u002F12017.cif","Mooney 1950","Ce P O4","P 62 2 2",{"id":256,"url":257,"label":258,"formula":259,"spacegroup":260,"year":261},12018,"\u002Fcif\u002F12018.cif","Mooney 1948","Ce P O5 H2","P 31 2 1",1948,[263,264,265,266,267],"Llallagualita","Llallayualit","Llallayualita","Llallayualite","Rhabdophaan-(Ce)",[269,274,278,283,287,292],{"lang":270,"names":271},"ca",[272,273],"Rabdofana-","rabdofana-(Ce)",{"lang":275,"names":276},"de",[277],"Rhabdophan-(Ce)",{"lang":279,"names":280},"eu",[281,282],"Errabdofano-","Errabdofano-(Ce)",{"lang":284,"names":285},"it",[286,7],"Rabdofane-",{"lang":288,"names":289},"lv",[290,291],"Rabdofans-","Rabdofans-(Ce)",{"lang":293,"names":294},"nn",[295],"rhabdofan","Q653384",{"history":11,"applications":11}]