[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:4900":3},{"id":4,"longid":5,"guid":6,"name":7,"shortcode_ima":8,"entrytype":9,"entrytype_text":10,"varietyof":11,"synid":8,"polytypeof":8,"groupid":8,"weighting":12,"nolocadd":13,"blacklisted":13,"mindat_formula":14,"mindat_formula_note":8,"ima_formula":8,"elements":15,"sigelements":19,"key_elements":8,"impurities":8,"cim":8,"ima_status":8,"ima_notes":8,"ima_history":8,"approval_year":8,"publication_year":8,"discovery_year":8,"strunz10ed1":8,"strunz10ed2":8,"strunz10ed3":8,"strunz10ed4":8,"dana8ed1":20,"dana8ed2":20,"dana8ed3":20,"dana8ed4":20,"csystem":8,"cclass":8,"spacegroup":8,"spacegroupset":8,"a":8,"b":8,"c":8,"alpha":8,"beta":8,"gamma":8,"aerror":8,"berror":8,"cerror":8,"alphaerror":8,"betaerror":8,"gammaerror":8,"va3":8,"z":8,"csmetamict":13,"commentcrystal":8,"twinning":8,"tranglide":8,"parting":8,"epitaxidescription":8,"morphology":8,"tlform":8,"hmin":8,"hmax":8,"hardtype":8,"vhnmin":20,"vhnmax":20,"vhnerror":8,"vhng":8,"vhns":8,"commenthard":8,"dmeas":20,"dmeas2":20,"dcalc":20,"dmeaserror":8,"dcalcerror":8,"commentdense":8,"lustre":8,"lustretype":8,"commentluster":8,"diapheny":8,"streak":8,"colour":21,"commentcolor":8,"colors":22,"streak_colors":8,"luminescence":8,"uv":8,"cleavage":8,"cleavagetype":8,"fracturetype":8,"tenacity":8,"commentbreak":8,"opticaltype":8,"opticalsign":8,"opticalalpha":8,"opticalalpha2":20,"opticalalphaerror":8,"opticalbeta":8,"opticalbeta2":20,"opticalbetaerror":8,"opticalgamma":8,"opticalgamma2":20,"opticalgammaerror":8,"opticalomega":8,"opticalomega2":20,"opticalomegaerror":8,"opticalepsilon":8,"opticalepsilon2":20,"opticalepsilonerror":8,"opticaln":8,"opticaln2":8,"opticalnerror":8,"optical2vcalc":8,"optical2vcalc2":8,"optical2vcalcerror":8,"optical2vmeasured":8,"optical2vmeasured2":8,"optical2vmeasurederror":8,"rimin":8,"rimax":8,"opticaldispersion":8,"opticalpleochroism":8,"opticalpleochorismdesc":8,"opticalbirefringence":8,"opticalcomments":8,"opticalcolour":8,"opticalinternal":8,"opticaltropic":8,"opticalanisotropism":8,"opticalbireflectance":8,"opticalextinction":8,"opticalr":8,"specdispm":8,"ir":8,"electrical":8,"magnetism":8,"thermalbehaviour":8,"other":8,"industrial":8,"occurrence":8,"otheroccurrence":8,"type_specimen_store":8,"description_short":8,"aboutname":24,"rock_parent":8,"rock_parent2":8,"rock_root":25,"rock_bgs_code":8,"meteoritical_code":8,"updttime":26,"reviewed_at":8,"variety_of":27,"varieties":36,"group_members":37,"associates":38,"confused_with":39,"type_localities":40,"occurrence_total":41,"citations":42,"images":67,"structures":128,"synonyms":129,"language_names":137,"wikidata_qid":8,"texts":138},4900,"1:1:4900:5","5cfcb4ee-9118-42ff-a79c-90155bb7e28c","Iceland Spar",null,2,"variety",859,679,false,"CaCO\u003Csub>3\u003C\u002Fsub>",[16,17,18],"Ca","O","C",[16,17,18],"0","Clear",[23],"colorless","After the original locality in Iceland.",0,"2025-08-11 12:14:25",{"id":11,"name":28,"entrytype":25,"csystem":29,"ima_formula":30,"mindat_formula":14,"hmin":31,"hmax":31,"dmeas":32,"dcalc":33,"strunz10ed1":34,"primary_image_id":35},"Calcite","Trigonal","Ca(CO\u003Csub>3\u003C\u002Fsub>)",3,"2.7102","2.711","5",4401,[],[],[],[],[],48,[43,47,51,55,59,63],{"id":44,"year":45,"html":46,"doi":8},16129257,1888,"Hastings (1888) American Journal of Science: 35: 60.",{"id":48,"year":49,"html":50,"doi":8},16129258,1890,"Offret (1890) Bulletin de la Société française de Minéralogie: 13: 580.",{"id":52,"year":53,"html":54,"doi":8},16129259,1893,"Dufet (1893) Bulletin de la Société française de Minéralogie: 16: 157.",{"id":56,"year":57,"html":58,"doi":8},16129260,1902,"Gifford (1902) Proceedings of the Royal Society of London: 70: 336.",{"id":60,"year":61,"html":62,"doi":8},16129261,1916,"Hintze, Carl (1916) Handbuch der Mineralogie. Berlin and Leipzig. 6 volumes: vol. 1(3A): 2839.",{"id":64,"year":65,"html":66,"doi":8},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.",[68,78,87,97,107,113,118],{"id":69,"source_url":70,"license_code":71,"credit_html":72,"title":73,"description":74,"author":75,"original_width":76,"original_height":77},60475,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=7644291","Public domain","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=7644291\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Calcite 10(Chine).jpg","\u003Ca href=\"https:\u002F\u002Fde.wikipedia.org\u002Fwiki\u002FCalcit\" class=\"extiw\" title=\"de:Calcit\">Calcit\u003C\u002Fa> - transparente, rhomboedrische Form, Synonym: Isländer Doppelspat","Parent Géry",4288,2848,{"id":79,"source_url":80,"license_code":71,"credit_html":81,"title":82,"description":83,"author":84,"original_width":85,"original_height":86},60477,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10400560","Alkivar, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10400560\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Calcite-HUGE.jpg","Large crystal of Calcite on display at the National Museum of Natural History in Washington, DC. Also known as Icelandic Spar","Alkivar",1492,1824,{"id":88,"source_url":89,"license_code":90,"credit_html":91,"title":92,"description":93,"author":94,"original_width":95,"original_height":96},60482,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=82863055","CC0 1.0","Gikü, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=82863055\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","MNEIN Moldova - Iceland spar - found in Cosăuți.jpg","\u003Ca href=\"https:\u002F\u002Fro.wikipedia.org\u002Fwiki\u002FSpat_de_Islanda\" class=\"extiw\" title=\"ro:Spat de Islanda\">Spat de Islanda\u003C\u002Fa>, descoperit în \u003Ca href=\"https:\u002F\u002Fro.wikipedia.org\u002Fwiki\u002Faflorimentul_de_gresii_%C8%99i_granit_de_la_Cos%C4%83u%C8%9Bi\" class=\"extiw\" title=\"ro:aflorimentul de gresii și granit de la Cosăuți\">aflorimentul de gresii și granit de la Cosăuți\u003C\u002Fa>","Gikü",4160,3120,{"id":98,"source_url":99,"license_code":100,"credit_html":101,"title":102,"description":103,"author":104,"original_width":105,"original_height":106},60486,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=116031499","CC BY-SA 4.0","Silar, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=116031499\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","020220313 104404 Iceland spar.jpg","Iceland spar","Silar",2113,2672,{"id":108,"source_url":109,"license_code":100,"credit_html":110,"title":28,"description":8,"author":8,"original_width":111,"original_height":112},88465,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F64965","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F64965\" rel=\"noopener\">The Estonian Museum of Natural History\u003C\u002Fa> via Europeana",1000,749,{"id":114,"source_url":115,"license_code":100,"credit_html":116,"title":28,"description":8,"author":8,"original_width":111,"original_height":117},88466,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F64942","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F64942\" rel=\"noopener\">The Estonian Museum of Natural History\u003C\u002Fa> via Europeana",521,{"id":119,"source_url":120,"license_code":121,"credit_html":122,"title":123,"description":124,"author":125,"original_width":126,"original_height":127},60478,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=12518599","CC BY-SA 3.0","ArniEin, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=12518599\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Silfurberg.jpg","Iceland spar, perhaps the medieval sunstone.","ArniEin",3000,2455,[],[130,131,132,133,134,135,136],"Cristallus islandica","Crystallus talcosa seu Islandica","Doppelspat","Doppelstein","Icelandic Spar","Islandspat","Spatum pellucidum objecta duplicans",[],{"history":8,"applications":8}]