[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:5119":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":21,"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":22,"strunz10ed2":22,"strunz10ed3":22,"strunz10ed4":8,"dana8ed1":8,"dana8ed2":8,"dana8ed3":8,"dana8ed4":8,"csystem":8,"cclass":8,"spacegroup":8,"spacegroupset":22,"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":8,"vhnmax":8,"vhnerror":8,"vhng":8,"vhns":8,"commenthard":8,"dmeas":8,"dmeas2":8,"dcalc":8,"dmeaserror":8,"dcalcerror":8,"commentdense":8,"lustre":8,"lustretype":8,"commentluster":8,"diapheny":8,"streak":8,"colour":23,"commentcolor":24,"colors":25,"streak_colors":8,"luminescence":8,"uv":8,"cleavage":8,"cleavagetype":8,"fracturetype":8,"tenacity":8,"commentbreak":8,"opticaltype":8,"opticalsign":8,"opticalalpha":8,"opticalalpha2":22,"opticalalphaerror":8,"opticalbeta":8,"opticalbeta2":22,"opticalbetaerror":8,"opticalgamma":8,"opticalgamma2":22,"opticalgammaerror":8,"opticalomega":8,"opticalomega2":22,"opticalomegaerror":8,"opticalepsilon":8,"opticalepsilon2":22,"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":28,"opticalpleochorismdesc":29,"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":8,"rock_parent":8,"rock_parent2":8,"rock_root":30,"rock_bgs_code":8,"meteoritical_code":8,"updttime":31,"reviewed_at":8,"variety_of":32,"varieties":42,"group_members":43,"associates":44,"confused_with":45,"type_localities":46,"occurrence_total":47,"citations":48,"images":58,"structures":69,"synonyms":70,"language_names":71,"wikidata_qid":8,"texts":72},5119,"1:1:5119:0","16ef1534-e472-42f0-b2f6-ff3c9f696b1e","Iolite",null,2,"variety",1128,114,false,"(Mg,Fe)\u003Csub>2\u003C\u002Fsub>Al\u003Csub>3\u003C\u002Fsub>(AlSi\u003Csub>5\u003C\u002Fsub>O\u003Csub>18\u003C\u002Fsub>)",[16,17,18,19,20],"Al","Fe","Mg","Si","O",[16,18,19,20],"0"," blue to blue–violet color","Cause of the color can be attributed to the charge transfer between Fe2+ on the octahedron and Fe3+ in the edge-shared T11 tetrahedra in the iolite.\r\n\r\n(1)The color coordinates a* and b* were the main factors affecting the variation of the chroma C*.\r\n(2)Fe is mainly present as Fe2+ and controls the lightness L* and the hue angle h°, while Mn does not have a significant effect on the color of iolite.\r\n(3)The intervalence charge transfer between Fe2+ and Fe3+ is responsible for the blue color of iolite.\r\n(4)The color parameters of iolite are affected by the change of light sources, and the hue angle h° is the most affected.",[26,27],"blue","purple","Strong","blue–violet iolite shows light purple, dark purple and yellow–brown pleochroism; blue iolite shows colorless to yellow, blue–gray and dark purple pleochroism",0,"2025-08-11 12:14:26",{"id":11,"name":33,"entrytype":30,"csystem":34,"ima_formula":35,"mindat_formula":35,"hmin":36,"hmax":37,"dmeas":38,"dcalc":39,"strunz10ed1":40,"primary_image_id":41},"Cordierite","Orthorhombic","Mg\u003Csub>2\u003C\u002Fsub>Al\u003Csub>4\u003C\u002Fsub>Si\u003Csub>5\u003C\u002Fsub>O\u003Csub>18\u003C\u002Fsub>",7,7.5,"2.6","2.505","9",6260,[],[],[],[],[],19,[49,53],{"id":50,"year":51,"html":52,"doi":8},16129371,1807,"Werner, A. G. (1807)",{"id":54,"year":55,"html":56,"doi":57},15490458,2022,"Liu, Xin, Guo, Ying (2022) Study on the Color-Influencing Factors of Blue Iolite. \u003Ci>Minerals\u003C\u002Fi>, 12 (11) 1356 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3390\u002Fmin12111356'>doi:10.3390\u002Fmin12111356\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Fwww.mdpi.com\u002F2075-163X\u002F12\u002F11\u002F1356\u002Fpdf?version=1666780823' class='refpdflink'>\u003C\u002Fa>","10.3390\u002Fmin12111356",[59],{"id":60,"source_url":61,"license_code":62,"credit_html":63,"title":64,"description":65,"author":66,"original_width":67,"original_height":68},50711,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=19437305","CC BY-SA 3.0","Parent Géry, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=19437305\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Cordiérite var. iolite.jpg","cordierite var. iolite : Belemboky mine, Tsiombe, Tulear Province, Madagascar : 19 mm","Parent Géry",2848,3563,[],[],[],{"history":8,"applications":8}]