[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:1589":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":23,"key_elements":24,"impurities":11,"cim":25,"ima_status":26,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":29,"discovery_year":30,"strunz10ed1":31,"strunz10ed2":20,"strunz10ed3":32,"strunz10ed4":33,"dana8ed1":34,"dana8ed2":35,"dana8ed3":36,"dana8ed4":37,"csystem":38,"cclass":39,"spacegroup":11,"spacegroupset":40,"a":41,"b":42,"c":43,"alpha":40,"beta":40,"gamma":40,"aerror":44,"berror":44,"cerror":45,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":46,"csmetamict":14,"commentcrystal":47,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":48,"tlform":49,"hmin":50,"hmax":50,"hardtype":11,"vhnmin":40,"vhnmax":40,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":51,"dmeas2":51,"dcalc":52,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":11,"commentluster":11,"diapheny":53,"streak":54,"colour":55,"commentcolor":11,"colors":56,"streak_colors":62,"luminescence":11,"uv":63,"cleavage":64,"cleavagetype":65,"fracturetype":11,"tenacity":11,"commentbreak":11,"opticaltype":66,"opticalsign":67,"opticalalpha":68,"opticalalpha2":69,"opticalalphaerror":11,"opticalbeta":70,"opticalbeta2":71,"opticalbetaerror":11,"opticalgamma":72,"opticalgamma2":73,"opticalgammaerror":11,"opticalomega":40,"opticalomega2":40,"opticalomegaerror":11,"opticalepsilon":40,"opticalepsilon2":40,"opticalepsilonerror":11,"opticaln":40,"opticaln2":40,"opticalnerror":11,"optical2vcalc":74,"optical2vcalc2":75,"optical2vcalcerror":11,"optical2vmeasured":75,"optical2vmeasured2":40,"optical2vmeasurederror":11,"rimin":76,"rimax":77,"opticaldispersion":78,"opticalpleochroism":79,"opticalpleochorismdesc":80,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":81,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":82,"other":83,"industrial":11,"occurrence":84,"otheroccurrence":11,"type_specimen_store":85,"description_short":86,"aboutname":87,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":88,"reviewed_at":11,"variety_of":11,"varieties":89,"group_members":90,"associates":114,"confused_with":115,"type_localities":116,"occurrence_total":123,"citations":124,"images":160,"structures":390,"synonyms":402,"language_names":405,"wikidata_qid":449,"texts":450},1589,"1:1:1589:5","69167a43-7aa6-4566-becf-3acad63b8d8e","Francevillite","Fvl",0,"mineral",null,46858,2225,false,"Ba(UO\u003Csub>2\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(VO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>·5H\u003Csub>2\u003C\u002Fsub>O","Ba(UO\u003Csub>2\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(VO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub> · 5H\u003Csub>2\u003C\u002Fsub>O",[18,19,20,21,22],"Ba","O","H","U","V",[18,19,20,21,22],[18,21,22],"21.4.10",[27,28],"APPROVED","GRANDFATHERED",1957,"1957","4","B","15","40","2a","27","1","Orthorhombic",8,"0","10.419","8.510","16.763",1,2,4,"Space Group: P can","Dominant {111}, rare {100}, {010}.","Impregnations, cryptocrystalline veinlets, and crystal-plates several millimeters in thickness.",3,"4.55","4.56","Translucent","Light yellow","Lemon-yellow, yellow-orange, orange, greenish yellow, green, brown",[57,58,59,60,61],"yellow","orange","green","brown","colorless",[57],"Does not fluoresce.","On {001}","Perfect","Biaxial","-","1.750","1.785","1.910","1.952","1.945","2.002","46","52",1.75,2.002,"strong","Visible","X = colorless; Y = Z = yellow.","X = c; Y = b; Z = a.","The mineral loses 7.8% H2O up to 225° and 8.7% up to 520°, but heating for three hours at 225° drove off 8.6%. X-ray patterns of material heated at 520° show no change, and the mineral rehydrates on being allowed to stand in the room atmosphere. A DTA curve shows a large endothermal effect at about 150-200°, and smaller ones at 680° and 900°.","Radioactive","Sandstone","National School of Mines, Paris, France.\r\nThe Natural History Museum, London, England, 1958,597.","Curienite-Francevillite Series.\r\n\r\nCompare also the Carnotite Group.","Named in 1957 by G. Branche, M.E. Ropert, F. Chantret, B. Morignat, and R. Pouget for Franceville, the city nearest the type locality.","2026-02-07 17:18:44",[],[91,99,106],{"id":92,"name":93,"entrytype":9,"csystem":38,"ima_formula":94,"mindat_formula":95,"hmin":50,"hmax":50,"dmeas":96,"dcalc":97,"primary_image_id":98},1196,"Curienite","Pb(UO\u003Csub>2\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(VO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub> · 5H\u003Csub>2\u003C\u002Fsub>O","Pb(UO\u003Csub>2\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(VO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>·5H\u003Csub>2\u003C\u002Fsub>O","4.88","4.94",6706,{"id":100,"name":101,"entrytype":9,"csystem":38,"ima_formula":102,"mindat_formula":103,"hmin":45,"hmax":45,"dmeas":11,"dcalc":104,"primary_image_id":105},52152,"Finchite","Sr(UO\u003Csub>2\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(V\u003Csub>2\u003C\u002Fsub>O\u003Csub>8\u003C\u002Fsub>) · 5H\u003Csub>2\u003C\u002Fsub>O","Sr(UO\u003Csub>2\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(V\u003Csub>2\u003C\u002Fsub>O\u003Csub>8\u003C\u002Fsub>)·5H\u003Csub>2\u003C\u002Fsub>O","4.352",8928,{"id":107,"name":108,"entrytype":9,"csystem":109,"ima_formula":110,"mindat_formula":111,"hmin":45,"hmax":50,"dmeas":112,"dcalc":40,"primary_image_id":113},1611,"Fritzscheite","Tetragonal","Mn\u003Csup>2+\u003C\u002Fsup>(UO\u003Csub>2\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(VO\u003Csub>4\u003C\u002Fsub>,PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub> · 4H\u003Csub>2\u003C\u002Fsub>O","Mn(UO\u003Csub>2\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>,VO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>·10H\u003Csub>2\u003C\u002Fsub>O (?)","3.5",9444,[],[],[117],{"id":118,"txt":119,"latitude":120,"longitude":121,"country":122},1750,"Mounana Mine, Mounana, Léboumbi-Leyou Department, Haut-Ogooué Province, Gabon",-1.4333333,13.15,"Gabon",42,[125,128,132,136,140,144,148,152,156],{"id":126,"year":29,"html":127,"doi":11},17826913,"Branche, Georges, Ropert Marie-Edith, Chantret, Francis, Morignat, Bernard, Pouget, Robert (1957)  La francevillite, nouveau minéral uranifère [Francevillite, a new uranium mineral]. \u003Ci>Comptes rendus de l’Académie des sciences de Paris\u003C\u002Fi>,  245. 89-91 \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Frruff_1.0\u002Fuploads\u002FCRHSAS245_89.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":129,"year":130,"html":131,"doi":11},15935132,1958,"Fleischer, M. (1958) New mineral names. American Mineralogist: 43: 180.",{"id":133,"year":134,"html":135,"doi":11},16109752,1963,"Bariand, P., Rimsky, A. (1963) New data on francevillite (Ba,Pb)(UO2)2(VO4)2·5H2O. Bulletin de la Société française de minéralogie et de cristallographie: 86(1): 39-39.",{"id":137,"year":138,"html":139,"doi":11},16109753,1966,"Gallagher, M. (1966) Francevillite from Rhodesia. Bulletin of the Geological Survey of Great Britain: 25.",{"id":141,"year":142,"html":143,"doi":11},16109754,1975,"Shashkin, D.P. (1975) The crystal structure of francevillite, Ba[(UO2)2(VO4)2]·5H2O. Doklady Akademii Nauk SSSR: 220(6): 1410-1413.",{"id":145,"year":146,"html":147,"doi":11},16148019,1986,"Mereiter, K. (1986) Crystal structure refinements of two francevillites, (Ba,Pb)[(UO2)2V2O8]·5H2O. Neues Jahrbuch für Mineralogie - Monatshefte 1986: 552-560.",{"id":149,"year":150,"html":151,"doi":11},16964433,2005,"(2005) Francevillite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Ffrancevillite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":153,"year":150,"html":154,"doi":155},16726379,"Frost, Ray L., Čejka, Jiří, Weier, Matt L., Martens, Wayde, Henry, Dermot A. (2005) Vibrational spectroscopy of selected natural uranyl vanadates. \u003Ci>Vibrational Spectroscopy\u003C\u002Fi>,  39 (2) 131-138 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fj.vibspec.2005.01.005'>doi:10.1016\u002Fj.vibspec.2005.01.005\u003C\u002Fa>","10.1016\u002Fj.vibspec.2005.01.005",{"id":157,"year":150,"html":158,"doi":159},64215,"Burns, Peter C. (2005) U\u003Csup>6+\u003C\u002Fsup> minerals and inorganic compounds: insights into an expanded structural hierarchy of crystal structures. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  43 (6) 1839-1894 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2113\u002Fgscanmin.43.6.1839'>doi:10.2113\u002Fgscanmin.43.6.1839\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fcm\u002Fvol43\u002FCM43_1839.pdf' class='refpdflink'>\u003C\u002Fa>","10.2113\u002Fgscanmin.43.6.1839",[161,171,180,188,197,206,216,223,229,234,240,248,256,265,272,280,287,295,302,309,317,325,335,343,349,355,362,370,378,384],{"id":162,"source_url":163,"license_code":164,"credit_html":165,"title":166,"description":167,"author":168,"original_width":169,"original_height":170},9343,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=6850109","CC BY-SA 3.0","Didier Descouens, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=6850109\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Francevillite.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFrancevillite\" class=\"extiw\" title=\"en:Francevillite\">Francevillite\u003C\u002Fa> with \u003Ca href=\"\u002F\u002Fcommons.wikimedia.org\u002Fwiki\u002FCurienite\" class=\"mw-redirect\" title=\"Curienite\">Curienite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality : Mounana Mine, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFranceville\" class=\"extiw\" title=\"en:Franceville\">Franceville\u003C\u002Fa>, Haut-Ogooué, \u003Ca href=\"\u002F\u002Fcommons.wikimedia.org\u002Fwiki\u002FGabon\" title=\"Gabon\">Gabon\u003C\u002Fa> - Toptype deposit\u003C\u002Fdd>\n\u003Cdd>Size : 23 x 17 cm Size of crystal 0.8cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Didier Descouens",4060,2949,{"id":172,"source_url":173,"license_code":164,"credit_html":174,"title":175,"description":176,"author":177,"original_width":178,"original_height":179},55682,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=3080450","Aangelo, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=3080450\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Francevillite - Cantal, Francia 01.jpg","Francevillite - Cantal, France","Aangelo",3264,2448,{"id":181,"source_url":182,"license_code":164,"credit_html":183,"title":184,"description":185,"author":168,"original_width":186,"original_height":187},16786,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=6853959","Didier Descouens, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=6853959\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Francevillite2.jpg","\u003Ca href=\"\u002F\u002Fcommons.wikimedia.org\u002Fwiki\u002FMounanaite\" class=\"mw-redirect\" title=\"Mounanaite\">Mounanaite\u003C\u002Fa> and \u003Ca href=\"\u002F\u002Fcommons.wikimedia.org\u002Fwiki\u002FFrancevillite\" class=\"mw-redirect\" title=\"Francevillite\">Francevillite\u003C\u002Fa>  \n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality : Mounana Mine, Franceville, Haut-Ogooué, \u003Ca href=\"\u002F\u002Fcommons.wikimedia.org\u002Fwiki\u002FGabon\" title=\"Gabon\">Gabon\u003C\u002Fa>- Topotype deposit -(View 7x4.5cm)\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",4140,2737,{"id":189,"source_url":190,"license_code":164,"credit_html":191,"title":192,"description":193,"author":194,"original_width":195,"original_height":196},9346,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=27861356","Leon Hupperichs, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=27861356\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Francevillite-426011.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFrancevillite\" class=\"extiw\" title=\"en:Francevillite\">Francevillite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Pandora Mine, Paradox Valley District, Paradox Valley, San Juan County, Utah, USA\u003C\u002Fdd>\n\u003Cdd>Field of view 4 mm. Specimen and photo Leon Hupperichs.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Leon Hupperichs",840,772,{"id":198,"source_url":199,"license_code":200,"credit_html":201,"title":202,"description":11,"author":203,"original_width":204,"original_height":205},9347,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=34029292","CC BY 3.0","Sailko, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=34029292\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Francevillite, da mounana, gabon.JPG","Sailko",1416,1578,{"id":207,"source_url":208,"license_code":209,"credit_html":210,"title":211,"description":212,"author":213,"original_width":214,"original_height":215},9348,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=49956470","CC BY-SA 4.0","Weirdmeister, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=49956470\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Francevillite makro 05.jpg","greenish yellow (Ba- Francevillite), Mounana Mine (Mouana Mine), Franceville, Haut-Ogooué Province, Gabon","Weirdmeister",3039,1911,{"id":217,"source_url":218,"license_code":209,"credit_html":219,"title":220,"description":212,"author":213,"original_width":221,"original_height":222},9349,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=49956471","Weirdmeister, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=49956471\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Francevillite makro 04.jpg",3003,1968,{"id":224,"source_url":225,"license_code":209,"credit_html":226,"title":227,"description":212,"author":213,"original_width":178,"original_height":228},9350,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=49956474","Weirdmeister, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=49956474\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Francevillite makro 06.jpg",2176,{"id":230,"source_url":231,"license_code":209,"credit_html":232,"title":233,"description":212,"author":213,"original_width":178,"original_height":228},55683,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=49956467","Weirdmeister, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=49956467\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Francevillite makro 03.jpg",{"id":235,"source_url":236,"license_code":209,"credit_html":237,"title":238,"description":239,"author":213,"original_width":178,"original_height":228},55684,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=49956468","Weirdmeister, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=49956468\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Francevillite makro 02.jpg","greenish yellow (Ba- Francevillite), Mounana Mine (Mouana Mine), Franceville, Haut-Ogooué Province, Gabon , FOV 15mm",{"id":241,"source_url":242,"license_code":209,"credit_html":243,"title":244,"description":245,"author":213,"original_width":246,"original_height":247},55685,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=50045207","Weirdmeister, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=50045207\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Francevillite boxed.jpg","greenish yellow (Ba- Francevillite), Mounana Mine (Mouana Mine), Franceville, Haut-Ogooué Province, Gabon, specimen size: 58mm",5472,3080,{"id":249,"source_url":250,"license_code":209,"credit_html":251,"title":252,"description":253,"author":213,"original_width":254,"original_height":255},55686,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=65514273","Weirdmeister, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=65514273\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Francevillite BA.jpg","greenish yellow (Ba- Francevillite), Mounana Mine (Mouana Mine), Franceville, Haut-Ogooué Province, Gabon , FOV 13mm",2560,1440,{"id":257,"source_url":258,"license_code":164,"credit_html":259,"title":260,"description":261,"author":262,"original_width":263,"original_height":264},16787,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10120115","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10120115\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Francevillite-Mounanaite-Curienite-20878.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFrancevillite\" class=\"extiw\" title=\"en:Francevillite\">Francevillite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMounanaite\" class=\"extiw\" title=\"en:Mounanaite\">Mounanaite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCurienite\" class=\"extiw\" title=\"en:Curienite\">Curienite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Mounana Mine (Mouana Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFranceville\" class=\"extiw\" title=\"en:Franceville\">Franceville\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHaut-Ogoou%C3%A9_Province\" class=\"extiw\" title=\"en:Haut-Ogooué Province\">Haut-Ogooué Province\u003C\u002Fa>, Gabon (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-1750.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>A rich miniature-sized specimen of incredible richness for the species, featuring RELATIVELY LARGE crystals of Francevillite to several mm in size completely coating a thin matrix plate. Characteristically powdery microcrystals of orangey-yellow curienite are abundant in association , as well. This mine closed in 1999 after 40 years of production, and this is, for quality if not size, pretty much as good as the mineral gets. This particular specimen comes from the Sorbonne (with a xerox label to this effect). Note that this its the type locality of BOTH species! 4.5 x 4 x 0.6 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",652,562,{"id":98,"source_url":266,"license_code":164,"credit_html":267,"title":268,"description":269,"author":262,"original_width":270,"original_height":271},"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10120112","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10120112\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Francevillite-Mounanaite-Curienite-20877.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFrancevillite\" class=\"extiw\" title=\"en:Francevillite\">Francevillite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMounanaite\" class=\"extiw\" title=\"en:Mounanaite\">Mounanaite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCurienite\" class=\"extiw\" title=\"en:Curienite\">Curienite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Mounana Mine (Mouana Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFranceville\" class=\"extiw\" title=\"en:Franceville\">Franceville\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHaut-Ogoou%C3%A9_Province\" class=\"extiw\" title=\"en:Haut-Ogooué Province\">Haut-Ogooué Province\u003C\u002Fa>, Gabon (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-1750.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>A rich miniature-sized specimen of incredible aesthetic and scientific quality. This piece features INDIVIDUAL and ISOLATED , RELATIVELY LARGE crystals of Francevillite to several mm in size, on an attractive matrix plate - and the back side is as good as the front side! Tiny yellow-gemmy crystals of mounanaite are so abundant and rich on this specimen that they are easily eye-visible against the larger francevillites, as shown in my pics. Characteristically powdery microcrystals of orangey-yellow curienite are in association , as well. This mine closed in 1999 after 40 years of production, and this is, for quality if not size, pretty much as good as the mineral gets. It is a trim from the large specimen I obtained, below. Note that this its the type locality of ALL THREE species! 4 x 3.5 x 1 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",750,563,{"id":273,"source_url":274,"license_code":164,"credit_html":275,"title":276,"description":277,"author":262,"original_width":278,"original_height":279},51467,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10149527","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10149527\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Francevillite-Curienite-169847.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFrancevillite\" class=\"extiw\" title=\"en:Francevillite\">Francevillite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCurienite\" class=\"extiw\" title=\"en:Curienite\">Curienite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Mounana Mine (Mouana Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFranceville\" class=\"extiw\" title=\"en:Franceville\">Franceville\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHaut-Ogoou%C3%A9_Province\" class=\"extiw\" title=\"en:Haut-Ogooué Province\">Haut-Ogooué Province\u003C\u002Fa>, Gabon (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-1750.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 3.7 x 1.7 x 1.1 cm.\u003C\u002Fdd>\n\u003Cdd>From the type locality, this matrix specimen of Francevillite features several bright orange crystals to .5 cm across (large for the species), associated with microcrystallized bright yellow Curienite in rich profusion around them. The color is just incredible. More importantly, the crystal size is shocking for the species, with discrete crystals artistically placed on matrix as opposed to the usual \"carpet\"-like, solid covering or druse of micros. This now-closed mine, once a major uranium source, is the TYPE LOCALITY for both species.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",419,800,{"id":281,"source_url":282,"license_code":164,"credit_html":283,"title":284,"description":285,"author":262,"original_width":279,"original_height":286},6707,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10153225","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10153225\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Francevillite-Curienite-181005.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFrancevillite\" class=\"extiw\" title=\"en:Francevillite\">Francevillite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCurienite\" class=\"extiw\" title=\"en:Curienite\">Curienite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Mounana Mine (Mouana Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFranceville\" class=\"extiw\" title=\"en:Franceville\">Franceville\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHaut-Ogoou%C3%A9_Province\" class=\"extiw\" title=\"en:Haut-Ogooué Province\">Haut-Ogooué Province\u003C\u002Fa>, Gabon (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-1750.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 7.7 x 6.4 x 3.7 cm.\u003C\u002Fdd>\n\u003Cdd>A solid, rich specimen that is almost entirely covered on the display face with beautiful orange Francevillite accented by yellow curienite. TYPE LOCALITY for both species. Tim Blackwood Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",709,{"id":288,"source_url":289,"license_code":164,"credit_html":290,"title":291,"description":292,"author":262,"original_width":293,"original_height":294},6709,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10457477","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10457477\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Curienite-Francevillite-rad08-12b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCurienite\" class=\"extiw\" title=\"en:Curienite\">Curienite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFrancevillite\" class=\"extiw\" title=\"en:Francevillite\">Francevillite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Mounana Mine (Mouana Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFranceville\" class=\"extiw\" title=\"en:Franceville\">Franceville\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHaut-Ogoou%C3%A9_Province\" class=\"extiw\" title=\"en:Haut-Ogooué Province\">Haut-Ogooué Province\u003C\u002Fa>, Gabon (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-1750.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: small cabinet, 7.7 x 6.4 x 3.7 cm\n\u003Cdl>\u003Cdt>Francevillite with Curienite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>A solid, rich specimen that is almost entirely covered on the display face, with beautiful orange Francevillite accented by yellow curienite. Rich, pretty, and fiery in color - this is a rather showy large piece! TYPE LOCALITY for both species\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",400,380,{"id":296,"source_url":297,"license_code":164,"credit_html":298,"title":299,"description":300,"author":262,"original_width":301,"original_height":293},6710,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10457759","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10457759\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Curienite-Francevillite-rare08-04c.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCurienite\" class=\"extiw\" title=\"en:Curienite\">Curienite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFrancevillite\" class=\"extiw\" title=\"en:Francevillite\">Francevillite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Mounana Mine (Mouana Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFranceville\" class=\"extiw\" title=\"en:Franceville\">Franceville\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHaut-Ogoou%C3%A9_Province\" class=\"extiw\" title=\"en:Haut-Ogooué Province\">Haut-Ogooué Province\u003C\u002Fa>, Gabon (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-1750.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 3.7 x 1.7 x 1.1 cm\n\u003Cdl>\u003Cdt>Francevillite with Curienite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>From the type locality, this matrix specimen of Francvilleite features several bright orange crystals to .5 cm across (large for the species), associated with microcrystallized bright yellow Curienite in rich profusion around them. The color is just incredible. More importantly, the crystal size is shocking for the species, with discrete xls artistically placed on matrix as opposed to the usual \"carpet\"-like, solid covering or druse of micros. This now-closed mine, once a major uranium source, is the TYPE LOCALITY for both species.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",301,{"id":303,"source_url":304,"license_code":164,"credit_html":305,"title":306,"description":307,"author":262,"original_width":293,"original_height":308},5370,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10464608","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10464608\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Chervetite-Curienite-Francevillite-t06-201b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FChervetite\" class=\"extiw\" title=\"en:Chervetite\">Chervetite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCurienite\" class=\"extiw\" title=\"en:Curienite\">Curienite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFrancevillite\" class=\"extiw\" title=\"en:Francevillite\">Francevillite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Mounana Mine (Mouana Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFranceville\" class=\"extiw\" title=\"en:Franceville\">Franceville\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHaut-Ogoou%C3%A9_Province\" class=\"extiw\" title=\"en:Haut-Ogooué Province\">Haut-Ogooué Province\u003C\u002Fa>, Gabon (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-1750.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: small cabinet, 8.7 x 6.1 x 2.1 cm\n\u003Cdl>\u003Cdt>Francevillite and Chervetite with Curienite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This specimen at first glance seems to be a pretty good francevillite (orange) with curienite (yellow). It is indeed that - very rich, colorful, and with awfully large crystals for francevillite! HOWEVER, the piece ALSO hosts outstanding, huge, really sharp crystals of the much rarer associated species Chervetite, named For French mineralogist, Jean Chervet (1904-62). Chervetite is a very uncommon lead vanadate - and few enough fine crystals of any vanadium minerals are found in these deposits in any case. This specimen has crystals that are eye-visible and attractive, to about 7-8 mm.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",299,{"id":310,"source_url":311,"license_code":209,"credit_html":312,"title":313,"description":314,"author":213,"original_width":315,"original_height":316},5374,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=51315663","Weirdmeister, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=51315663\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Chervetite Francevillite Naturkundemuseum Berlin.jpg","Chervetit mit Francevillit in der Mineraliensammlung im Naturkundemuseum Berlin",3241,2434,{"id":318,"source_url":319,"license_code":209,"credit_html":320,"title":321,"description":322,"author":213,"original_width":323,"original_height":324},6712,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=51315668","Weirdmeister, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=51315668\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Francevillite Curienite Cabinet Naturkundemuseum Berlin.jpg","Francevillit mit Curienit in der Mineraliensammlung im Naturkundemuseum Berlin",1839,2038,{"id":326,"source_url":327,"license_code":328,"credit_html":329,"title":330,"description":331,"author":332,"original_width":333,"original_height":334},16790,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84649743","CC BY 2.0","James St. John, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84649743\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Francevillite-mounanaite (Mounana Mine, Franceville, Gabon, Africa) (31205942471).jpg","\u003Cp>Francevillite on mounanaite from Gabon, Africa. (Robert Lauf collection)\n\u003C\u002Fp>\u003Cp>A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties.  At its simplest, a mineral is a naturally-occurring solid chemical.  Currently, there are over 5100 named and described minerals - about 200 of them are common and about 20 of them are very common.  Mineral classification is based on anion chemistry.  Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.\n\u003C\u002Fp>\u003Cp>The vanadate minerals all have one or more vanadate ions (VO4 -3).\n\u003C\u002Fp>\u003Cp>Francevillite is a radioactive, hydrous barium uranyl vanadate mineral, Ba(UO2)2(VO4)2·5H2O.  It is the barium equivalent of carnotite.  The mineral is moderately soft and ranges in color from yellowish to yellowish-brown to greenish-yellow to orangish to reddish.\n\u003C\u002Fp>\u003Cp>Francevillite is one of several secondary uranium minerals.  It results from the alteration of uraninite (UO2) or other U- or V-bearing minerals.  Uranium-bearing minerals are soluble in water and acids.  Water percolating through uraniferous rocks will end up having dissolved U compounds.  These dissolved compounds precipitate elsewhere as secondary U minerals.\n\u003C\u002Fp>\u003Cp>The sample shown above has bright orange francevillite crystals atop dark brown mounanaite (= PbFe2(VO4)2(OH,F)2 - lead iron hydroxy-fluoro-vanadate).  This is from the type locality for both minerals.\n\u003C\u002Fp>\u003Cp>Locality: Mounana Mine, Franceville, Gabon, Africa\n\u003C\u002Fp>\n\u003Chr>\n\u003Cp>Photo gallery of francevillite:\n\u003C\u002Fp>\n<a href=\"\u003Ca rel=\"nofollow\" class=\"external free\" href=\"http:\u002F\u002Fwww.mindat.org\u002Fgallery.php?min=1589\">http:\u002F\u002Fwww.mindat.org\u002Fgallery.php?min=1589\u003C\u002Fa>\" rel=\"nofollow\">www.mindat.org\u002Fgallery.php?min=1589<\u002Fa>","James St. John",1463,1010,{"id":336,"source_url":337,"license_code":164,"credit_html":338,"title":339,"description":340,"author":262,"original_width":341,"original_height":342},5369,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10136657","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10136657\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Francevillite-Chervetite-Curienite-64420.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFrancevillite\" class=\"extiw\" title=\"en:Francevillite\">Francevillite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FChervetite\" class=\"extiw\" title=\"en:Chervetite\">Chervetite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCurienite\" class=\"extiw\" title=\"en:Curienite\">Curienite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Mounana Mine (Mouana Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFranceville\" class=\"extiw\" title=\"en:Franceville\">Franceville\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHaut-Ogoou%C3%A9_Province\" class=\"extiw\" title=\"en:Haut-Ogooué Province\">Haut-Ogooué Province\u003C\u002Fa>, Gabon (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-1750.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>This specimen at first glance seems to be a pretty good francevillite (orange) with curienite (yellow). It is indeed that - very rich, colorful, and with awfully large crystals for francevillite! HOWEVER, the piece ALSO hosts outstanding, huge, really sharp crystals of the much rarer associated species Chervetite, named For French mineralogist, Jean Chervet (1904-62). Chervetite is a very uncommon lead vanadate - and few enough fine crystals of any vanadium minerals are found in these deposits in any case. This specimen has crystals that are eye-visible and attractive, to about 7-8 mm. 8.7 x 6.1 x 2.1 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",600,465,{"id":344,"source_url":345,"license_code":164,"credit_html":346,"title":347,"description":307,"author":262,"original_width":279,"original_height":348},5371,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10464610","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10464610\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Chervetite-Curienite-Francevillite-t06-201c.jpg",587,{"id":350,"source_url":351,"license_code":164,"credit_html":352,"title":353,"description":307,"author":262,"original_width":354,"original_height":279},5372,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10464612","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10464612\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Chervetite-Curienite-Francevillite-t06-201d.jpg",553,{"id":356,"source_url":357,"license_code":164,"credit_html":358,"title":359,"description":285,"author":262,"original_width":360,"original_height":361},6708,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10153227","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10153227\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Francevillite-Curienite-181008.jpg",500,385,{"id":363,"source_url":364,"license_code":209,"credit_html":365,"title":366,"description":367,"author":213,"original_width":368,"original_height":369},6711,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=51315667","Weirdmeister, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=51315667\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Francevillite Curienite Naturkundemuseum Berlin.jpg","Francevillite mit Curienit in der Mineraliensammlung im Naturkundemuseum Berlin",2430,2370,{"id":371,"source_url":372,"license_code":164,"credit_html":373,"title":374,"description":375,"author":262,"original_width":376,"original_height":377},16788,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10120116","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10120116\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Francevillite-Mounanaite-Curienite-20879.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFrancevillite\" class=\"extiw\" title=\"en:Francevillite\">Francevillite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMounanaite\" class=\"extiw\" title=\"en:Mounanaite\">Mounanaite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCurienite\" class=\"extiw\" title=\"en:Curienite\">Curienite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Mounana Mine (Mouana Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFranceville\" class=\"extiw\" title=\"en:Franceville\">Franceville\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHaut-Ogoou%C3%A9_Province\" class=\"extiw\" title=\"en:Haut-Ogooué Province\">Haut-Ogooué Province\u003C\u002Fa>, Gabon (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-1750.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>A rich CABINET-sized specimen that is incredible for both its aesthetic and scientific qualities. This piece features INDIVIDUAL and ISOLATED , RELATIVELY LARGE crystals of Francevillite to several mm in size, on an attractive matrix plate! Tiny yellow-gemmy crystals of mounanaite are so abundant and rich on this specimen that they are easily eye-visible against the larger francevillites, as shown in my pics. Characteristically powdery microcrystals of orangey-yellow curienite are in association , as well, in scattered crystals and as a thick matte on the rightmost edge of the specimen. This mine closed in 1999 after 40 years of production, and this is, for quality if not size, pretty much as good as the mineral gets. Note that this its the type locality of ALL THREE species! 12.5 x 7 x 2.25 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",798,514,{"id":379,"source_url":380,"license_code":164,"credit_html":381,"title":382,"description":277,"author":262,"original_width":383,"original_height":279},51466,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10149526","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10149526\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Francevillite-Curienite-169846.jpg",432,{"id":385,"source_url":386,"license_code":164,"credit_html":387,"title":388,"description":300,"author":262,"original_width":389,"original_height":293},51468,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10457758","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10457758\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Curienite-Francevillite-rare08-04d.jpg",239,[391,397],{"id":392,"url":393,"label":394,"formula":395,"spacegroup":396,"year":146},5181,"\u002Fcif\u002F5181.cif","Mereiter 1986 · (Ba.96 Pb.04) U2 V2 O17 H10","(Ba.96 Pb.04) U2 V2 O17 H10","P c a n",{"id":398,"url":399,"label":400,"formula":401,"spacegroup":396,"year":146},5182,"\u002Fcif\u002F5182.cif","Mereiter 1986 · (Ba.69 Pb.31) U2 V2 O17 H10","(Ba.69 Pb.31) U2 V2 O17 H10",[403,404],"Barium-Francevillite","Francevilliet",[406,411,415,419,422,425,429,433,437,440,445],{"lang":407,"names":408},"ca",[409,410],"francevil·lita","francevillita",{"lang":412,"names":413},"de",[414],"Francevillit",{"lang":416,"names":417},"es",[418],"Francevillita",{"lang":420,"names":421},"eu",[418],{"lang":423,"names":424},"fr",[7],{"lang":426,"names":427},"he",[428],"פרנקוליט",{"lang":430,"names":431},"it",[432],"francevillite",{"lang":434,"names":435},"mk",[436],"Франсвилит",{"lang":438,"names":439},"pl",[414],{"lang":441,"names":442},"ro",[443,444],"francevillit","vanadat hidratat de uranil, bariu și plumb",{"lang":446,"names":447},"uk",[448],"Франсвіліт","Q1065441",{"history":11,"applications":11}]