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In dense stony aggregates.",2.5,"2.45","Transparent","Colorless, light gray to bluish gray",[47,48,49],"colorless","gray","blue","Good on {0001}.","Distinct\u002FGood","Uniaxial","-","1.533","1.498",1.498,1.533,"Slowly hygroscopic in air, altering to Bütschliite, and finally to calcite.","Trees struck by lightning.","In clinkers in partly burned softwood trees such as hemlock and fir.","National Museum of Natural History (Smithsonian Institution), Washington, D.C., USA, number 105675, 105676, 162622.","The high-temperature polymorph of bütschliite.\r\nThe K analogue of zemkorite.","Named in honor of John Gifford Fairchild (28 May 1882, Monticello, New York, USA - 16 January 1965, Alexandria, Virginia, USA), analytical chemist, with the U.S. Geological Survey.","2025-08-11 12:14:20",[],[],[68,73],{"id":69,"name":70,"entrytype":9,"csystem":71,"ima_formula":14,"mindat_formula":14,"hmin":11,"hmax":11,"dmeas":36,"dcalc":72,"primary_image_id":11},821,"Bütschliite","Trigonal","2.607",{"id":74,"name":75,"entrytype":9,"csystem":71,"ima_formula":76,"mindat_formula":77,"hmin":78,"hmax":78,"dmeas":79,"dcalc":80,"primary_image_id":81},859,"Calcite","Ca(CO\u003Csub>3\u003C\u002Fsub>)","CaCO\u003Csub>3\u003C\u002Fsub>",3,"2.7102","2.711",4401,[83],{"id":69,"name":70,"entrytype":9,"csystem":71,"ima_formula":14,"mindat_formula":14,"hmin":11,"hmax":11,"dmeas":36,"dcalc":72,"primary_image_id":11},[85,89],{"id":86,"txt":87,"latitude":11,"longitude":11,"country":88},22329,"Grand Canyon National Park, Arizona, USA","USA",{"id":90,"txt":91,"latitude":92,"longitude":93,"country":88},31375,"Coolin, Kaniksu National Forest, Bonner County, Idaho, USA",48.4797222,-116.8494444,12,[96,99,103,107,111,115,120,124,129],{"id":97,"year":25,"html":98,"doi":11},521726,"Milton, Charles, Axelrod, Joseph (1947) Fused wood-ash stones: Fairchildite (n.sp.) K2CO3·CaCO3, buetschliite (n.sp.) 3K2CO3·2CaCO3·6H2O and calcite, CaCO3, their essential components. \u003Ci>American Mineralogist\u003C\u002Fi>,  32 (11-12) 607-624 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM32\u002FAM32_607.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":100,"year":101,"html":102,"doi":11},521793,1948,"Fleischer, M. (1948) New mineral names. \u003Ci>American Mineralogist\u003C\u002Fi>,  33 (5-6). 384-386 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM33\u002FAM33_384.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":104,"year":105,"html":106,"doi":11},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.",{"id":108,"year":109,"html":110,"doi":11},16171308,1965,"MANDARINO, J.A. & HARRIS, D.C. (1965) New Canadian mineral occurrences. Canadian Mineralogist, 8, 377-381.",{"id":112,"year":113,"html":114,"doi":11},524726,1967,"Fleischer, M. (1967) New mineral names. \u003Ci>American Mineralogist\u003C\u002Fi>,  52 (5-6). 925-929 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM52\u002FAM52_925.pdf?reftype=.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":116,"year":117,"html":118,"doi":119},110004,1981,"Pertlik, F. (1981) Structural investigations of synthetic fairchildite, K2Ca(CO3)2. \u003Ci>Zeitschrift für Kristallographie\u003C\u002Fi>,  157 (3-4). 199-205 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.1981.157.3-4.199'>doi:10.1524\u002Fzkri.1981.157.3-4.199\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fzk\u002Fvol157\u002FZK157_199.pdf' class='refpdflink'>\u003C\u002Fa>","10.1524\u002Fzkri.1981.157.3-4.199",{"id":121,"year":122,"html":123,"doi":11},16964196,2005,"(2005) Fairchildite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Ffairchildite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":125,"year":126,"html":127,"doi":128},398149,2016,"Garvie, Laurence A.J. (2016) Mineralogy of paloverde (Parkinsonia microphylla) tree ash from the Sonoran Desert: A combined field and laboratory study. \u003Ci>American Mineralogist\u003C\u002Fi>,  101 (7) 1584-1595 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam-2016-5571'>doi:10.2138\u002Fam-2016-5571\u003C\u002Fa>","10.2138\u002Fam-2016-5571",{"id":130,"year":131,"html":132,"doi":133},17947325,2025,"Kahlenberg, Volker, Braun, Doris E., Schmidt, Wolfgang, Liu, Hang, Leiting, Sebastian, Weidenthaler, Claudia (2025) Mechanochemical synthesis and transformation of the polymorphic double carbonates fairchildite and buetschliite, (K\u003Csub>2\u003C\u002Fsub>Ca(CO\u003Csub>3\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>): an \u003Ci>in situ\u003C\u002Fi> X-ray powder diffraction study. \u003Ci>RSC Mechanochemistry\u003C\u002Fi>,  2 (1). 152-158 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1039\u002Fd4mr00093e'>doi:10.1039\u002Fd4mr00093e\u003C\u002Fa>","10.1039\u002Fd4mr00093e",[],[136],{"id":137,"url":138,"label":139,"formula":140,"spacegroup":141,"year":117},4336,"\u002Fcif\u002F4336.cif","Pertlik 1981","K2 Ca C2 O6","P 63\u002Fm m c",[143],"Fairchildiet",[145,149,153,157,160],{"lang":146,"names":147},"ca",[148],"fairchildita",{"lang":150,"names":151},"de",[152],"Fairchildit",{"lang":154,"names":155},"eu",[156],"Fairchildita",{"lang":158,"names":159},"it",[7],{"lang":161,"names":162},"uk",[163,164],"Файрчильдит","Фейрчайлдит","Q3738438",{"history":11,"applications":11}]