[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:2806":3},{"id":4,"longid":5,"guid":6,"name":7,"shortcode_ima":8,"entrytype":9,"entrytype_text":10,"varietyof":11,"synid":11,"polytypeof":11,"groupid":11,"weighting":12,"nolocadd":13,"blacklisted":13,"mindat_formula":14,"mindat_formula_note":15,"ima_formula":16,"elements":17,"sigelements":21,"key_elements":11,"impurities":22,"cim":23,"ima_status":24,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":27,"discovery_year":28,"strunz10ed1":29,"strunz10ed2":30,"strunz10ed3":31,"strunz10ed4":32,"dana8ed1":33,"dana8ed2":34,"dana8ed3":35,"dana8ed4":36,"csystem":37,"cclass":38,"spacegroup":39,"spacegroupset":40,"a":41,"b":42,"c":43,"alpha":40,"beta":40,"gamma":40,"aerror":44,"berror":45,"cerror":46,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":47,"csmetamict":13,"commentcrystal":48,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":49,"tlform":50,"hmin":44,"hmax":45,"hardtype":11,"vhnmin":40,"vhnmax":40,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":51,"dmeas2":52,"dcalc":53,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":54,"commentluster":11,"diapheny":55,"streak":11,"colour":56,"commentcolor":11,"colors":57,"streak_colors":11,"luminescence":11,"uv":11,"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":32,"optical2vmeasured2":75,"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":11,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":11,"occurrence":81,"otheroccurrence":11,"type_specimen_store":11,"description_short":82,"aboutname":83,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":84,"reviewed_at":11,"variety_of":11,"varieties":85,"group_members":86,"associates":87,"confused_with":88,"type_localities":89,"occurrence_total":96,"citations":97,"images":230,"structures":301,"synonyms":329,"language_names":333,"wikidata_qid":416,"texts":417},2806,"1:1:2806:2","217e94ed-8d2c-402d-8b1a-0b40f1fc2b62","Mullite","Mul",0,"mineral",null,3118,false,"Al\u003Csub>4+2x\u003C\u002Fsub>Si\u003Csub>2-2x\u003C\u002Fsub>O\u003Csub>10-x\u003C\u002Fsub>","(x ~ 0.4)","Al\u003Csub>4+2x\u003C\u002Fsub>Si\u003Csub>2-2x\u003C\u002Fsub>O\u003Csub>10-x\u003C\u002Fsub> (x ≈ 0.4)",[18,19,20],"Al","Si","O",[18,19,20],"Ti,Fe,Na,K","15.4",[25,26],"APPROVED","GRANDFATHERED",1924,"1924","9","A","F","20","52","2","3","1","Orthorhombic",8,59,"0","7.5785","7.6817","2.8864",6,7,3,1,"On synthetic material. Structure is incommensurately modulated.","Crystals prismatic to acicular.","Minute sharp crystals embedded in glass.","3.11","3.26","3.17","Vitreous","Transparent,Translucent","Colourless, white, yellow, pink, red, gray",[58,59,60,61,62,63],"colorless","white","yellow","pink","red","gray","Distinct on {010}","Distinct\u002FGood","Biaxial","+","1.642","1.653","1.644","1.655","1.654","1.679","34","50",1.642,1.679,"r > v","Visible","X=Y= colorless\r\nZ= rose-pink","Sillimanite buchites or fused argillaceous sediments occurring as inclusions in Tertiary intrusives.","Synthetic mullite is well-known as a high-performance ceramic.\r\n\r\nCompare 'meta-kaolinite', 'pseudomullite', and 'silicon spinel' - synthetic phases being intermediate products of mullite formation from kaolinite.","Named after the discovery locality, the Isle of Mull, Scotland.","2026-03-14 11:07:37",[],[],[],[],[90],{"id":91,"txt":92,"latitude":93,"longitude":94,"country":95},2985,"Seabank Villa, Loch Scridain area, Isle of Mull, Argyll and Bute, Scotland, UK",56.377726,-6.0771476,"UK",106,[98,101,104,108,113,118,122,126,131,135,139,143,148,152,156,159,163,168,173,177,181,186,191,196,201,206,211,215,220,225],{"id":99,"year":27,"html":100,"doi":11},16117929,"Bowen, N.L., Greig, J.W., Zies, E.G. (1924) Mullite, a silicate of alumina. Journal of the Washington Academy of Sciences: 14: 183-191.",{"id":102,"year":27,"html":103,"doi":11},16117930,"Foshag, W.F. (1924) New minerals: new species. American Mineralogist: 9: 211-212.",{"id":105,"year":106,"html":107,"doi":11},16117931,1957,"Agrell, S.O., Smith, J.V. (1957) X-ray crystallography of mullite, sillimanite and praguite. Acta Crystallographica: 10: 761-761.",{"id":109,"year":110,"html":111,"doi":112},4081188,1959,"BRINDLEY, G. W.; NAKAHIRA, M. (1959) The Kaolinite-Mullite Reaction Series: I, A Survey of Outstanding Problems. \u003Ci>Journal of the American Ceramic Society\u003C\u002Fi>,  42 (7). 311-314 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1111\u002Fj.1151-2916.1959.tb14314.x'>doi:10.1111\u002Fj.1151-2916.1959.tb14314.x\u003C\u002Fa>","10.1111\u002Fj.1151-2916.1959.tb14314.x",{"id":114,"year":115,"html":116,"doi":117},4081290,1960,"AGRELL, S. O., SMITH, J. V. (1960) Cell Dimensions, Solid Solution, Polymorphism, and Identification of Mullite and Sillimanite. \u003Ci>Journal of the American Ceramic Society\u003C\u002Fi>, 43 (2). 69-78 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1111\u002Fj.1151-2916.1960.tb13643.x'>doi:10.1111\u002Fj.1151-2916.1960.tb13643.x\u003C\u002Fa>","10.1111\u002Fj.1151-2916.1960.tb13643.x",{"id":119,"year":120,"html":121,"doi":11},16117933,1962,"Durovic, S. (1962) A statistical model for the crystal structure of mullite. Soviet Physics - Crystallography: 7: 271-278.",{"id":123,"year":124,"html":125,"doi":11},16105482,1969,"Ernst, W.G, Calvert, S.E. (1969) An experimental study of the recrystallization of porcelanite and its bearing on the origin of some bedded cherts. American Journal of Science 267-A, 114-133.",{"id":127,"year":128,"html":129,"doi":130},109038,1976,"GUSE, W.; SAALFELD, H. (1976) Das diffuse Beugungsbild von Mullit, 2Al\u003Csub>2\u003C\u002Fsub>O\u003Csub>3\u003C\u002Fsub> · SiO\u003Csub>2\u003C\u002Fsub>. \u003Ci>Zeitschrift für Kristallographie\u003C\u002Fi>,  143 (1-6). 177-187 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.1976.143.jg.177'>doi:10.1524\u002Fzkri.1976.143.jg.177\u003C\u002Fa>","10.1524\u002Fzkri.1976.143.jg.177",{"id":132,"year":133,"html":134,"doi":11},526899,1977,"Cameron, Warrington E. (1977) Mullite: a substituted alumina. \u003Ci>American Mineralogist\u003C\u002Fi>,  62 (7-8) 747-755 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM62\u002FAM62_747.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":136,"year":133,"html":137,"doi":138},4085196,"LEONARD, A. J. (1977) Structural Analysis of the Transition Phases in the Kaolinite-Mullite Thermal Sequence. \u003Ci>Journal of the American Ceramic Society\u003C\u002Fi>, 60 (1). 37-43 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1111\u002Fj.1151-2916.1977.tb16089.x'>doi:10.1111\u002Fj.1151-2916.1977.tb16089.x\u003C\u002Fa>","10.1111\u002Fj.1151-2916.1977.tb16089.x",{"id":140,"year":141,"html":142,"doi":11},16117936,1986,"Angel, R.J., Prewitt, C.T. (1986) Crystal structure of mullite: A re-examination of the average structure. American Mineralogist: 71: 1476-1482.",{"id":144,"year":145,"html":146,"doi":147},9989865,1990,"Srikrishna, K., Thomas, G., Martinez, R., Corral, M. P., De Aza, S., Moya, J. S. (1990) Kaolinite-mullite reaction series: a TEM study. \u003Ci>Journal of Materials Science\u003C\u002Fi>, 25. 607-612 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fbf00714083'>doi:10.1007\u002Fbf00714083\u003C\u002Fa>","10.1007\u002Fbf00714083",{"id":149,"year":145,"html":150,"doi":151},151860,"Welberry, T.R.; Withers, R.L. (1990) An optical transform and Monte Carlo study of the diffuse X-ray scattering in mullite, Al2(Al2+2xSi2-2x)O10-x. \u003Ci>Physics and Chemistry of Minerals\u003C\u002Fi>,  17 (2). 117-124 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fbf00199662'>doi:10.1007\u002Fbf00199662\u003C\u002Fa>","10.1007\u002Fbf00199662",{"id":153,"year":154,"html":155,"doi":11},529022,1991,"Niven, Margaret L., Waters, David J., Moore, John M. (1991) The crystal structure of werdingite, (Mg,Fe)2Al12(Al,Fe)2Si4(B,Al)4O37 and its relationship to sillimanite, mullite, and grandidierite. \u003Ci>American Mineralogist\u003C\u002Fi>,  76 (1-2) 246-256 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM76\u002FAM76_246.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":157,"year":154,"html":158,"doi":11},529039,"Angel, R. J., Mcmullan, R. K., Prewitt, C. T. (1991) Substructure and superstructure of mullite by neutron diffraction. \u003Ci>American Mineralogist\u003C\u002Fi>,  76 (3-4) 332-342 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM76\u002FAM76_332.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":160,"year":154,"html":161,"doi":162},580684,"Kahn-Harari, A., Abolhassani, S., Michel, D., Mazerolles, L., Portier, R., Perez-Ramirez, J.G. (1991) Observation of ordering in silicon and germanium mullites. \u003Ci>Journal of Solid State Chemistry\u003C\u002Fi>,  90. 234-248 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002F0022-4596(91)90139-9'>doi:10.1016\u002F0022-4596(91)90139-9\u003C\u002Fa>","10.1016\u002F0022-4596(91)90139-9",{"id":164,"year":165,"html":166,"doi":167},152137,1993,"Butler, B.D.; Welberry, T.R.; Withers, R.L. (1993) Oxygen vacancy ordering and the incommensurate structure of mullite. \u003Ci>Physics and Chemistry of Minerals\u003C\u002Fi>,  20 (5). 323-332 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fbf00215103'>doi:10.1007\u002Fbf00215103\u003C\u002Fa>","10.1007\u002Fbf00215103",{"id":169,"year":170,"html":171,"doi":172},2008,1994,"Querol, X., Fernandez Turiel, J. L., Lopez Soler, A. (1994) The behaviour of mineral matter during combustion of Spanish subbituminous and brown coals. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  58 (390) 119-133 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1994.058.390.11'>doi:10.1180\u002Fminmag.1994.058.390.11\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_58\u002F58-390-119.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1994.058.390.11",{"id":174,"year":175,"html":176,"doi":11},16966151,2001,"(2001) Mullite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fmullite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":178,"year":175,"html":179,"doi":180},127986,"Voll, Dietmar, Lengauer, Christian, Beran, Anton, Schneider, Hartmut (2001) Infrared band assignment and structural refinement of Al-Si, Al-Ge, and Ga-Ge mullites. \u003Ci>European Journal of Mineralogy\u003C\u002Fi>,  13 (3) 591-604 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1127\u002F0935-1221\u002F2001\u002F0013-0591'>doi:10.1127\u002F0935-1221\u002F2001\u002F0013-0591\u003C\u002Fa>","10.1127\u002F0935-1221\u002F2001\u002F0013-0591",{"id":182,"year":183,"html":184,"doi":185},16726867,2002,"Voll, D, Angerer, P, Beran, A, Schneider, H (2002) A new assignment of IR vibrational modes in mullite. \u003Ci>Vibrational Spectroscopy\u003C\u002Fi>,  30 (2) 237-243 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fs0924-2031(02)00030-9'>doi:10.1016\u002Fs0924-2031(02)00030-9\u003C\u002Fa>","10.1016\u002Fs0924-2031(02)00030-9",{"id":187,"year":188,"html":189,"doi":190},394820,2003,"Rodriguez-Navarro, Carlos, Cultrone, Giuseppe, Sanchez-Navas, Antonio, Sebastian, Eduardo (2003) TEM study of mullite growth after muscovite breakdown. \u003Ci>American Mineralogist\u003C\u002Fi>,  88 (5) 713-724 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam-2003-5-601'>doi:10.2138\u002Fam-2003-5-601\u003C\u002Fa>","10.2138\u002Fam-2003-5-601",{"id":192,"year":193,"html":194,"doi":195},4094286,2004,"Lee, Sujeong, Kim, Youn Joong, Moon, Hi-Soo (2004) Phase Transformation Sequence from Kaolinite to Mullite Investigated by an Energy-Filtering Transmission Electron Microscope. \u003Ci>Journal of the American Ceramic Society\u003C\u002Fi>, 82 (10). 2841-2848 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1111\u002Fj.1151-2916.1999.tb02165.x'>doi:10.1111\u002Fj.1151-2916.1999.tb02165.x\u003C\u002Fa>","10.1111\u002Fj.1151-2916.1999.tb02165.x",{"id":197,"year":198,"html":199,"doi":200},8449009,2011,"Fischer, R. X.; Birkenstock, J.; Gaede-Köhler, A.; Schneider, H. (2011) News on mullite and mullite-type compounds. \u003Ci>Acta Crystallographica Section A Foundations of Crystallography\u003C\u002Fi>,  67 (a1). C702-C703 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs0108767311082213'>doi:10.1107\u002Fs0108767311082213\u003C\u002Fa>","10.1107\u002Fs0108767311082213",{"id":202,"year":203,"html":204,"doi":205},8454322,2013,"Fischer, Reinhard X.; Birkenstock, Johannes; Petříček, Vaclav; Pedersen, Björn; Schneider, Hartmut (2013) Structural examinations of synthetic and natural single crystals of mullite. \u003Ci>Acta Crystallographica Section A Foundations of Crystallography\u003C\u002Fi>,  69 (a1). s443-s444 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs0108767313096141'>doi:10.1107\u002Fs0108767313096141\u003C\u002Fa>","10.1107\u002Fs0108767313096141",{"id":207,"year":208,"html":209,"doi":210},8510577,2015,"Birkenstock, Johannes, Petříček, Václav, Pedersen, Bjoern, Schneider, Hartmut, Fischer, Reinhard X. (2015) The modulated average structure of mullite. \u003Ci>Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials\u003C\u002Fi>, 71 (3). 358-368 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs205252061500757x'>doi:10.1107\u002Fs205252061500757x\u003C\u002Fa>","10.1107\u002Fs205252061500757x",{"id":212,"year":208,"html":213,"doi":214},397851,"Fischer, Reinhard X., Tikhonova, Valeria, Birkenstock, Johannes, Fischer, Lennart A., Herrmann, Klaus, Mengel, Kurt, Schneider, Hartmut (2015) A new mineral from the Bellerberg, Eifel, Germany, intermediate between mullite and sillimanite. \u003Ci>American Mineralogist\u003C\u002Fi>,  100 (7) 1493-1501 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam-2015-4966'>doi:10.2138\u002Fam-2015-4966\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff-2.geo.arizona.edu\u002Fuploads\u002FAM100_1493.pdf' class='refpdflink'>\u003C\u002Fa>","10.2138\u002Fam-2015-4966",{"id":216,"year":217,"html":218,"doi":219},16724953,2016,"Bost, Nicolas, Duraipandian, Shiyamala, Guimbretière, Guillaume, Poirier, Jacques (2016) Raman spectra of synthetic and natural mullite. \u003Ci>Vibrational Spectroscopy\u003C\u002Fi>,  82. 50-52 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fj.vibspec.2015.11.003'>doi:10.1016\u002Fj.vibspec.2015.11.003\u003C\u002Fa>","10.1016\u002Fj.vibspec.2015.11.003",{"id":221,"year":222,"html":223,"doi":224},129911,2020,"Lenz, Stephan, Birkenstock, Johannes, Fischer, Lennart A., Schneider, Hartmut, Fischer, Reinhard X. (2020) Mullite-2\u003Ci>c\u003C\u002Fi> - a natural polytype of mullite. \u003Ci>European Journal of Mineralogy\u003C\u002Fi>,  32 (2) 235-249 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.5194\u002Fejm-32-235-2020'>doi:10.5194\u002Fejm-32-235-2020\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Fejm.copernicus.org\u002Farticles\u002F32\u002F235\u002F2020\u002Fejm-32-235-2020.pdf' class='refpdflink'>\u003C\u002Fa>","10.5194\u002Fejm-32-235-2020",{"id":226,"year":227,"html":228,"doi":229},15901120,2023,"Abdelmaseh, Samuel, Burianek, Manfred, Birkenstock, Johannes, Fischer, Lennart A., Schneider, Hartmut, Fischer, Reinhard X. (2023) Incorporation of Pb in (Al,Ge)-mullites in the presence of Fe, Cr, Nd, and Sm. \u003Ci>Zeitschrift für Kristallographie - Crystalline Materials\u003C\u002Fi>, 238 (5) 151-166 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1515\u002Fzkri-2022-0026'>doi:10.1515\u002Fzkri-2022-0026\u003C\u002Fa>","10.1515\u002Fzkri-2022-0026",[231,239,249,256,266,275,283,291],{"id":232,"source_url":233,"license_code":234,"credit_html":235,"title":236,"description":11,"author":11,"original_width":237,"original_height":238},30237,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F112777","CC BY 4.0","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F112777\" rel=\"noopener\">Department of Geology, TalTech\u003C\u002Fa> via Europeana","Minerals",1000,666,{"id":240,"source_url":241,"license_code":242,"credit_html":243,"title":244,"description":245,"author":246,"original_width":247,"original_height":248},16854,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14866338","CC BY-SA 3.0","Leon Hupperichs, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14866338\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mullite-102482.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMullite\" class=\"extiw\" title=\"en:Mullite\">Mullite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Emmelberg Mt., Üdersdorf, Daun, Eifel Mts, Rhineland-Palatinate, Germany\u003C\u002Fdd>\n\u003Cdd>Field of view 4 mm. Specimen and photo Leon Hupperichs.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Leon Hupperichs",720,542,{"id":250,"source_url":251,"license_code":242,"credit_html":252,"title":253,"description":245,"author":246,"original_width":254,"original_height":255},16855,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14866342","Leon Hupperichs, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14866342\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mullite-102483.jpg",735,541,{"id":257,"source_url":258,"license_code":259,"credit_html":260,"title":261,"description":262,"author":263,"original_width":264,"original_height":265},16858,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=75618092","CC BY 3.0","Ralph Bottrill, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=75618092\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mullite-655833.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMullite\" class=\"extiw\" title=\"en:Mullite\">Mullite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Field of view: 5 mm\u003C\u002Fdd>\n\u003Cdd>Locality: Hendersons Quarry, Mount Ngongotaha, Rotorua District, Bay of Plenty Region (Te Moana-a-Toi), North Island, New Zealand\u003C\u002Fdd>\n\u003Cdd>Original description: Fibrous radiating mullite spray, with yellow ?\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Ralph Bottrill",2534,1692,{"id":267,"source_url":268,"license_code":234,"credit_html":269,"title":270,"description":271,"author":272,"original_width":273,"original_height":274},68883,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=141321015","Miguel Calvo, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=141321015\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mullita 1.jpg","Mullite in porcelanite. Produced by in situ the thermal metamorphism\n\u003Cp>of clays caused by the spontaneous combustion, at an unknown\n\u003C\u002Fp>\ntime, of lignite beds intebbedded in the stratigraphic sequence. Cabezo de las Barriadas,Utrillas (Teruel), Spain. Specimen size 5 cm. Col. & photo M. Calvo.","Miguel Calvo",2570,2469,{"id":276,"source_url":277,"license_code":242,"credit_html":278,"title":279,"description":280,"author":281,"original_width":237,"original_height":282},16851,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9621803","Fred Kruijen, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9621803\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Osumilite tablets with Mullite - Ochtendung, Eifel, Germany.jpg","A lot of very thin \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FOsumilite\" class=\"extiw\" title=\"en:Osumilite\">Osumilite\u003C\u002Fa> tablets together with some \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMullite\" class=\"extiw\" title=\"en:Mullite\">Mullite\u003C\u002Fa>, image width: 2 mm - Locality: Wannenköpfe, Ochtendung, Eifel region, Germany","Fred Kruijen",750,{"id":284,"source_url":285,"license_code":242,"credit_html":286,"title":287,"description":288,"author":281,"original_width":289,"original_height":290},16852,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9621971","Fred Kruijen, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9621971\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Osumilite, thick tabulars with Mullite - Ochtendung, Eifel, Germany.jpg","Thick  \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FOsumilite\" class=\"extiw\" title=\"en:Osumilite\">Osumilite\u003C\u002Fa> tabulars, together with \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMullite\" class=\"extiw\" title=\"en:Mullite\">Mullite\u003C\u002Fa>, image width: 1.,5 mm - Locality: Wannenköpfe, Ochtendung, Eifel region, Germany",1004,753,{"id":292,"source_url":293,"license_code":294,"credit_html":295,"title":296,"description":297,"author":298,"original_width":299,"original_height":300},16853,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10716208","Public domain","John Krygier, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10716208\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mullite, Cordierite, Tridymite - Bohemia, Czech Republic.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMullite\" class=\"extiw\" title=\"en:Mullite\">Mullite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCordierite\" class=\"extiw\" title=\"en:Cordierite\">cordierite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTridymite\" class=\"extiw\" title=\"en:Tridymite\">tridymite\u003C\u002Fa> (size: 2.5\" x 1.5\" x 1\")\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Česká Kamenice, Děčín (Tetschen), Ústí Region, Bohemia (Böhmen; Boehmen), Czech Republic\u003C\u002Fdd>\n\u003Cdd>\u003Ci>original description:\u003C\u002Fi> Specimen of \"porcelainite\" - a semivitrified chert- or jasper-like rock composed of cordierite, mullite and tridymite, admixture of corundum, and subordinate K-feldspar. The porcelain quality of this mineral is caused by contact with heated basalt or, in this case, a burning coal seam.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>\nPorcelainite was used for tools in prehistory, and is sometimes cut\u002Fpolished for jewelry.","John Krygier",1024,768,[302,309,314,319,324],{"id":303,"url":304,"label":305,"formula":306,"spacegroup":307,"year":308},9618,"\u002Fcif\u002F9618.cif","Popovic 2007 · Al2.28 Si.72 O4.86","Al2.28 Si.72 O4.86","P b a m",2007,{"id":310,"url":311,"label":312,"formula":313,"spacegroup":307,"year":308},9619,"\u002Fcif\u002F9619.cif","Popovic 2007 · Al2.25 Co.015 Si.735 O4.86","Al2.25 Co.015 Si.735 O4.86",{"id":315,"url":316,"label":317,"formula":318,"spacegroup":307,"year":175},9620,"\u002Fcif\u002F9620.cif","Fischer 2001 · Na.335 Al3 O4.665","Na.335 Al3 O4.665",{"id":320,"url":321,"label":322,"formula":323,"spacegroup":307,"year":175},9621,"\u002Fcif\u002F9621.cif","Fischer 2001 · K.335 Al3 O4.665","K.335 Al3 O4.665",{"id":325,"url":326,"label":327,"formula":328,"spacegroup":307,"year":175},9622,"\u002Fcif\u002F9622.cif","Voll 2001","Al2.41 Si.59 O4.793",[330,331,332],"Keramite (of Mellor and Scott)","Porcelainit","Porcelainita",[334,338,342,345,348,352,355,360,364,367,371,375,381,385,389,392,395,399,402,406,409,412],{"lang":335,"names":336},"az",[337],"Mullit",{"lang":339,"names":340},"ca",[341],"mullita",{"lang":343,"names":344},"cs",[337],{"lang":346,"names":347},"de",[337],{"lang":349,"names":350},"es",[351,332],"Mullita",{"lang":353,"names":354},"eu",[351],{"lang":356,"names":357},"fa",[358,359],"پرسلانیت","مولایت",{"lang":361,"names":362},"fi",[363],"Mulliitti",{"lang":365,"names":366},"fr",[7],{"lang":368,"names":369},"hu",[370],"mullit",{"lang":372,"names":373},"it",[374],"mullite",{"lang":376,"names":377},"ja",[378,379,380],"マル石","ムライト","ムル石",{"lang":382,"names":383},"nb",[384],"mullitt",{"lang":386,"names":387},"nl",[388],"Mulliet",{"lang":390,"names":391},"nn",[384],{"lang":393,"names":394},"pl",[337],{"lang":396,"names":397},"ru",[398],"муллит",{"lang":400,"names":401},"sv",[337],{"lang":403,"names":404},"uk",[405],"муліт",{"lang":407,"names":408},"uz",[337],{"lang":410,"names":411},"vi",[337],{"lang":413,"names":414},"zh",[415],"莫來石","Q418875",{"history":11,"applications":11}]