[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:27087":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":26,"key_elements":27,"impurities":11,"cim":11,"ima_status":28,"ima_notes":11,"ima_history":30,"approval_year":31,"publication_year":11,"discovery_year":11,"strunz10ed1":32,"strunz10ed2":33,"strunz10ed3":34,"strunz10ed4":35,"dana8ed1":36,"dana8ed2":36,"dana8ed3":36,"dana8ed4":36,"csystem":37,"cclass":38,"spacegroup":11,"spacegroupset":36,"a":39,"b":40,"c":41,"alpha":36,"beta":42,"gamma":36,"aerror":43,"berror":44,"cerror":45,"alphaerror":11,"betaerror":45,"gammaerror":11,"va3":11,"z":11,"csmetamict":14,"commentcrystal":46,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":11,"tlform":47,"hmin":11,"hmax":11,"hardtype":11,"vhnmin":36,"vhnmax":36,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":36,"dmeas2":36,"dcalc":36,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":48,"commentluster":11,"diapheny":49,"streak":11,"colour":50,"commentcolor":11,"colors":51,"streak_colors":11,"luminescence":11,"uv":11,"cleavage":11,"cleavagetype":11,"fracturetype":11,"tenacity":11,"commentbreak":11,"opticaltype":11,"opticalsign":11,"opticalalpha":36,"opticalalpha2":36,"opticalalphaerror":11,"opticalbeta":36,"opticalbeta2":36,"opticalbetaerror":11,"opticalgamma":36,"opticalgamma2":36,"opticalgammaerror":11,"opticalomega":36,"opticalomega2":36,"opticalomegaerror":11,"opticalepsilon":36,"opticalepsilon2":36,"opticalepsilonerror":11,"opticaln":36,"opticaln2":36,"opticalnerror":11,"optical2vcalc":36,"optical2vcalc2":36,"optical2vcalcerror":11,"optical2vmeasured":36,"optical2vmeasured2":36,"optical2vmeasurederror":11,"rimin":11,"rimax":11,"opticaldispersion":11,"opticalpleochroism":11,"opticalpleochorismdesc":11,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":11,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":11,"occurrence":53,"otheroccurrence":11,"type_specimen_store":54,"description_short":55,"aboutname":56,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":57,"reviewed_at":11,"variety_of":11,"varieties":58,"group_members":59,"associates":101,"confused_with":102,"type_localities":103,"occurrence_total":110,"citations":111,"images":139,"structures":159,"synonyms":166,"language_names":169,"wikidata_qid":193,"texts":194},27087,"1:1:27087:2","4cc4cfa4-a142-4d8e-9c33-2b4461fc5744","Hellandite-(Ce)","Hld-Ce",0,"mineral",null,29214,265,false,"(Ca,REE)\u003Csub>4\u003C\u002Fsub>Ce\u003Csub>2\u003C\u002Fsub>Al◻\u003Csub>2\u003C\u002Fsub>(B\u003Csub>4\u003C\u002Fsub>Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>) (OH)\u003Csub>2\u003C\u002Fsub>","In the IMA approved report on hellandites (Oberti et al., 2002), the occupancy at the T sites was given as (Be,Li)2–x, however the value of x was not specified. Actually it is always x > 1, therefore the T site is vacant in the ideal formula of hellandite-(Ce).","(Ca,REE)\u003Csub>4\u003C\u002Fsub>Ce\u003Csub>2\u003C\u002Fsub>Al◻\u003Csub>2\u003C\u002Fsub>(B\u003Csub>4\u003C\u002Fsub>Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>)(OH)\u003Csub>2\u003C\u002Fsub>",[19,20,21,22,23,24,25],"Al","Ca","Ce","Si","B","O","H",[19,20,21,22,23,24,25],[23,21],[29],"APPROVED","Revision of formula: IMA 2017 (CNMNC Newsletter No. 37).",2001,"9","D","K","20","0","Monoclinic",5,"19.068","4.745","10.289","111.18",8,2,3,"Space group P2\u002Fa. Cell data for Th-U-rich, Y-poor hellandite-(Ce) (Oberti et al., 1999).","Crystals are euhedral, transparent, light-green colored, with a maximum dimension of 0.3–0.4 mm. Also found in the ground-mass of ejectum filling voids and fractures in the rock and systematically intergrown with britholite.","Vitreous","Transparent","Light green",[52],"green","In miarolitic cavities.","No designated type material.","The correct formula (according to the IMA Newsletter no. 37) is (Ca,REE)4Ce2Al□2(B4Si4O22)(OH)2.\r\n\r\nThe Al analogue of ferri-hellandite-(Ce).\r\nThe Ce analogue of hellandite-(Y) and hellandite-(Yb).","Defined as a Ce-dominant mineral distinct from hellandite-(Y) in 2002 by R. Oberti, G. Della Ventura, L. Ottolini, F. C. Hawthorne, and P. Bonazzi.\r\n\r\nThe hellandite root is for Amund Theodor Helland (11 October 1846 Bergen, Norway - 15 November 1918, Kristiania (now Oslo), Norway), professor of geology and geography at the Royal Frederick University (University of Oslo).","2025-10-17 12:23:34",[],[60,66,71,75,85,93],{"id":61,"name":62,"entrytype":9,"csystem":37,"ima_formula":63,"mindat_formula":64,"hmin":11,"hmax":11,"dmeas":36,"dcalc":36,"primary_image_id":65},10799,"Ciprianiite","Ca\u003Csub>4\u003C\u002Fsub>(ThCa)Al(Be\u003Csub>0.5\u003C\u002Fsub>◻\u003Csub>1.5\u003C\u002Fsub>)\u003Csub>E2\u003C\u002Fsub>[B\u003Csub>4\u003C\u002Fsub>Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>](OH)\u003Csub>2\u003C\u002Fsub>","Ca\u003Csub>4\u003C\u002Fsub>[(Th,U),Ca]\u003Csub>Σ2\u003C\u002Fsub>Al(Be\u003Csub>0.5\u003C\u002Fsub>◻\u003Csub>1.5\u003C\u002Fsub>)\u003Csub>Σ2\u003C\u002Fsub>[B\u003Csub>4\u003C\u002Fsub>Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>](OH)\u003Csub>2\u003C\u002Fsub>",5757,{"id":67,"name":68,"entrytype":9,"csystem":37,"ima_formula":69,"mindat_formula":70,"hmin":11,"hmax":11,"dmeas":11,"dcalc":11,"primary_image_id":11},55376,"Ferri-hellandite-(Ce)","(Ca\u003Csub>3\u003C\u002Fsub>Ce)Ce\u003Csub>2\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>B\u003Csub>4\u003C\u002Fsub>Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>","(Ca\u003Csub>3\u003C\u002Fsub>Ce)Ce\u003Csub>2\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>◻\u003Csub>2\u003C\u002Fsub>B\u003Csub>4\u003C\u002Fsub>Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>",{"id":72,"name":73,"entrytype":9,"csystem":37,"ima_formula":74,"mindat_formula":74,"hmin":11,"hmax":11,"dmeas":11,"dcalc":11,"primary_image_id":11},53254,"Ferri-mottanaite-(Ce)","Ca\u003Csub>4\u003C\u002Fsub>Ce\u003Csub>2\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>(Be\u003Csub>1.5\u003C\u002Fsub>◻\u003Csub>0.5\u003C\u002Fsub>)[Si\u003Csub>4\u003C\u002Fsub>B\u003Csub>4\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>]O\u003Csub>2\u003C\u002Fsub>",{"id":76,"name":77,"entrytype":9,"csystem":37,"ima_formula":78,"mindat_formula":79,"hmin":80,"hmax":81,"dmeas":82,"dcalc":83,"primary_image_id":84},1852,"Hellandite-(Y)","(Ca,REE)\u003Csub>4\u003C\u002Fsub>Y\u003Csub>2\u003C\u002Fsub>Al◻\u003Csub>2\u003C\u002Fsub>(B\u003Csub>4\u003C\u002Fsub>Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>)(OH)\u003Csub>2\u003C\u002Fsub>","(Ca,REE)\u003Csub>4\u003C\u002Fsub>Y\u003Csub>2\u003C\u002Fsub>Al◻\u003Csub>2\u003C\u002Fsub>(B\u003Csub>4\u003C\u002Fsub>Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>) (OH)\u003Csub>2\u003C\u002Fsub>",4.5,6.5,"2.95","3.5",11075,{"id":86,"name":87,"entrytype":9,"csystem":37,"ima_formula":88,"mindat_formula":89,"hmin":11,"hmax":11,"dmeas":90,"dcalc":91,"primary_image_id":92},10798,"Mottanaite-(Ce)","Ca\u003Csub>4\u003C\u002Fsub>Ce\u003Csub>2\u003C\u002Fsub>Al(Be\u003Csub>1.5\u003C\u002Fsub>◻\u003Csub>0.5\u003C\u002Fsub>)\u003Csub>E2\u003C\u002Fsub>[B\u003Csub>4\u003C\u002Fsub>Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>]O\u003Csub>2\u003C\u002Fsub>","Ca\u003Csub>4\u003C\u002Fsub>(Ce,REE)\u003Csub>Σ2\u003C\u002Fsub>Al(Be\u003Csub>1.5\u003C\u002Fsub>◻\u003Csub>0.5\u003C\u002Fsub>)\u003Csub>Σ2\u003C\u002Fsub>[B\u003Csub>4\u003C\u002Fsub>Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>]O\u003Csub>2\u003C\u002Fsub>","3.61","3.88",16782,{"id":94,"name":95,"entrytype":9,"csystem":37,"ima_formula":11,"mindat_formula":96,"hmin":97,"hmax":97,"dmeas":98,"dcalc":99,"primary_image_id":100},3866,"Tadzhikite-(Ce)","Ca\u003Csub>4\u003C\u002Fsub>Ce\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>Ti◻\u003Csub>2\u003C\u002Fsub>(B\u003Csub>4\u003C\u002Fsub>Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>)(OH)\u003Csub>2\u003C\u002Fsub>",6,"3.73","3.77",23472,[],[],[104],{"id":105,"txt":106,"latitude":107,"longitude":108,"country":109},63048,"Campo Padella, Capranica, Viterbo Province, Lazio, Italy",42.2787036,12.1506142,"Italy",7,[112,116,121,126,131,135],{"id":113,"year":114,"html":115,"doi":11},15418311,1996,"Grew, Edward S.; Anovitz, Lawrence M. - \u003Ci>Eds.\u003C\u002Fi> (1996) Boron - Mineralogy, Petrology and Geochemistry. \u003Ci>Reviews in Mineralogy\u003C\u002Fi> Vol. 33. Mineralogical Society of America p.862",{"id":117,"year":118,"html":119,"doi":120},394000,1999,"Oberti, Roberta, Ottolini, Luisa, Camara, Fernando, Della Ventura, Giancarlo (1999) Crystal structure of non-metamict Th-rich hellandite-(Ce) from Latium (Italy) and crystal chemistry of the hellandite-group minerals. \u003Ci>American Mineralogist\u003C\u002Fi>,  84 (5) 913-921 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam-1999-5-626'>doi:10.2138\u002Fam-1999-5-626\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fam\u002Fvol84\u002FAM84_913.pdf' class='refpdflink'>\u003C\u002Fa>","10.2138\u002Fam-1999-5-626",{"id":122,"year":123,"html":124,"doi":125},394602,2002,"Oberti, Roberta, Ventura, Giancarlo Della, Ottolini, Luisa, Hawthorne, Frank C., Bonazzi, Paola (2002) Re-definition, nomenclature and crystal-chemistry of the hellandite group. \u003Ci>American Mineralogist\u003C\u002Fi>,  87 (5) 745-752 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam-2002-5-618'>doi:10.2138\u002Fam-2002-5-618\u003C\u002Fa>","10.2138\u002Fam-2002-5-618",{"id":127,"year":128,"html":129,"doi":130},244910,2017,"Hålenius, U., Hatert, F., Pasero, M., Mills, S. J. (2017) New minerals and nomenclature modifications approved in 2017, CNMNC Newsletter No 37. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  81 (3) 737-742 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.2017.081.039'>doi:10.1180\u002Fminmag.2017.081.039\u003C\u002Fa>","10.1180\u002Fminmag.2017.081.039",{"id":132,"year":133,"html":134,"doi":11},16964784,2021,"(2021) Hellandite-(Ce). \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002FHellandite-Ce.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":136,"year":133,"html":137,"doi":138},13422053,"Perna, Maria; Zaccaria, Daria; Rosatelli, Gianluigi; Stoppani, Francesco; Curti, Ezio; Spratt, John; Humphreys-Williams, Emma; Najorka, Jens; Brownscombe, Will; Nestola, Fabrizio; et al. (2021) Dissolution-Repackaging of Hellandite-(Ce), Mottanaite-(Ce)\u002FFerri-Mottanaite-(Ce). \u003Ci>Minerals\u003C\u002Fi>,  11 (6). 610 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3390\u002Fmin11060610'>doi:10.3390\u002Fmin11060610\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Fwww.mdpi.com\u002F2075-163X\u002F11\u002F6\u002F610\u002Fpdf?version=1623135870' class='refpdflink'>\u003C\u002Fa>","10.3390\u002Fmin11060610",[140,150],{"id":141,"source_url":142,"license_code":143,"credit_html":144,"title":145,"description":146,"author":147,"original_width":148,"original_height":149},11076,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=76112470","CC BY-SA 4.0","David Hospital, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=76112470\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Hellandite-(Ce).jpg","Tan acicular crystals of the REE mineral hellandite-(Ce) from a classic locality in Italy: Vetralla, Viterbo Province, Latium.","David Hospital",722,667,{"id":84,"source_url":151,"license_code":152,"credit_html":153,"title":154,"description":155,"author":156,"original_width":157,"original_height":158},"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14865953","CC BY-SA 3.0","Leon Hupperichs, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14865953\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Hellandite-(Y)-87049.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHellandite-(Y)\" class=\"extiw\" title=\"en:Hellandite-(Y)\">Hellandite-(Y)\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Evans-Lou Mine, Val-des-Monts, Les Collines-de-l'Outaouais RCM, Outaouais, Québec, Canada\u003C\u002Fdd>\n\u003Cdd>Yellowish to brown massive Hellandite-(Y).  Possible some Kainosite-(Y) is also present. Field of view 7 mm. Specimen and photo Leon Hupperichs.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Leon Hupperichs",692,519,[160],{"id":161,"url":162,"label":163,"formula":164,"spacegroup":165,"year":118},6019,"\u002Fcif\u002F6019.cif","Oberti 1999","B4 Si4 (Al.83 Fe.65 Ti.41 Mg.11) (Ca4.2 Th.36 U.06 Y.12 La.3 Ce.66 Pr.06 Nd.24) Be.74 Li.24 H.5 O23.5 F.5","P 1 2\u002Fa 1",[167,168],"Hellandiet-(Ce)","IMA2001-019",[170,175,180,185,189],{"lang":171,"names":172},"ca",[173,174],"Hel·landita-","hel·landita-(Ce)",{"lang":176,"names":177},"de",[178,179],"Hellandit-(Ce)","IMA 2001-019",{"lang":181,"names":182},"eu",[183,184],"Hellandita-","Hellandita-(Ce)",{"lang":186,"names":187},"it",[188,7],"Hellandite-",{"lang":190,"names":191},"nn",[192],"hellanditt","Q3784629",{"history":11,"applications":11}]