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Found first in the Shergotty meteorite, and since then in several other Martian meteorites. Stable only above pressures of 780 kilobars,...","Named in honour of Dr. Friedrich Seifert (1941- ), founding Director of the Bayerisches Geoinstitut (Bavarian Geoinstitute) at Bayreuth, Germany, for his contributions to high-pressure geoscience.","2025-08-11 12:14:51",[],[53,63,70,78,83,91,98,104,110,114,118,125,131],{"id":54,"name":55,"entrytype":9,"csystem":56,"ima_formula":57,"mindat_formula":58,"hmin":59,"hmax":60,"dmeas":11,"dcalc":61,"primary_image_id":62},39335,"Chibaite","Isometric","SiO\u003Csub>2\u003C\u002Fsub> · n(CH\u003Csub>4\u003C\u002Fsub>,C\u003Csub>2\u003C\u002Fsub>H\u003Csub>6\u003C\u002Fsub>,C\u003Csub>3\u003C\u002Fsub>H\u003Csub>8\u003C\u002Fsub>,C\u003Csub>4\u003C\u002Fsub>H\u003Csub>10\u003C\u002Fsub>) (n\u003Csub>max\u003C\u002Fsub> = 3\u002F17)","SiO\u003Csub>2\u003C\u002Fsub>·n(CH\u003Csub>4\u003C\u002Fsub>, C\u003Csub>2\u003C\u002Fsub>H\u003Csub>6\u003C\u002Fsub>, C\u003Csub>3\u003C\u002Fsub>H\u003Csub>8\u003C\u002Fsub>, 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Martian meteorite, Gaya District, Bihar, India",24.55,84.8333333,"India",3,[163,167,171,174,179,183,187,192,197,202,207,212],{"id":164,"year":23,"html":165,"doi":166},128734,"Goresy, Ahmed E.l. Dera, Sharp, Thomas G., Prewitt, Charles T., Chen, Ming, Dubrovinsky, Leonid, Wopenka, Brigitte, Boctor, Nabil Z., Hemley, Russell J. (2008) Seifertite, a dense orthorhombic polymorph of silica from the Martian meteorites Shergotty and Zagami. \u003Ci>European Journal of Mineralogy\u003C\u002Fi>,  20 (4) 523-528 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1127\u002F0935-1221\u002F2008\u002F0020-1812'>doi:10.1127\u002F0935-1221\u002F2008\u002F0020-1812\u003C\u002Fa>","10.1127\u002F0935-1221\u002F2008\u002F0020-1812",{"id":168,"year":169,"html":170,"doi":11},16134021,2011,"Bläß, U., Langenhorst, F. (2011) High-pressure phase transformation of SiO2 polymorphs to Seifertite. Joint Meeting of the DGK, DMG and ÖMG, Salzburg, Austria, September 20-24, 2011; Abstracts Volume, p. 46.",{"id":172,"year":169,"html":173,"doi":11},16967243,"(2011) Seifertite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fseifertite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":175,"year":176,"html":177,"doi":178},153839,2013,"Bläß, Ulrich W. (2013) Shock-induced formation mechanism of seifertite in shergottites. \u003Ci>Physics and Chemistry of Minerals\u003C\u002Fi>,  40 (5) 425-437 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fs00269-013-0580-x'>doi:10.1007\u002Fs00269-013-0580-x\u003C\u002Fa>","10.1007\u002Fs00269-013-0580-x",{"id":180,"year":176,"html":181,"doi":182},6049507,"Miyahara, Masaaki; Kaneko, Shohei; Ohtani, Eiji; Sakai, Takeshi; Nagase, Toshiro; Kayama, Masahiro; Nishido, Hirotsugu; Hirao, Naohisa (2013) Discovery of seifertite in a shocked lunar meteorite. \u003Ci>Nature Communications\u003C\u002Fi>,  4. 1737 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1038\u002Fncomms2733'>doi:10.1038\u002Fncomms2733\u003C\u002Fa>","10.1038\u002Fncomms2733",{"id":184,"year":176,"html":185,"doi":186},929544,"Grocholski, B., Shim, S.-H., Prakapenka, V. B. (2013) Stability, metastability, and elastic properties of a dense silica polymorph, seifertite. \u003Ci>Journal of Geophysical Research: Solid Earth\u003C\u002Fi>,  118 (9) 4745-4757 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1002\u002Fjgrb.50360'>doi:10.1002\u002Fjgrb.50360\u003C\u002Fa>","10.1002\u002Fjgrb.50360",{"id":188,"year":189,"html":190,"doi":191},397369,2014,"Andrault, D., Tronnes, R. G., Konopkova, Z., Morgenroth, W., Liermann, H. P., Morard, G., Mezouar, M. (2014) Phase diagram and P-V-T equation of state of Al-bearing seifertite at lowermost mantle conditions. \u003Ci>American Mineralogist\u003C\u002Fi>,  99 (10) 2035-2042 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam-2014-4697'>doi:10.2138\u002Fam-2014-4697\u003C\u002Fa>","10.2138\u002Fam-2014-4697",{"id":193,"year":194,"html":195,"doi":196},7933228,2015,"Kubo, Tomoaki, Kato, Takumi, Higo, Yuji, Funakoshi, Ken-ichi (2015) Curious kinetic behavior in silica polymorphs solves seifertite puzzle in shocked meteorite. \u003Ci>Science Advances\u003C\u002Fi>, 1 (4).  \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1126\u002Fsciadv.1500075'>doi:10.1126\u002Fsciadv.1500075\u003C\u002Fa>","10.1126\u002Fsciadv.1500075",{"id":198,"year":199,"html":200,"doi":201},397940,2016,"Zhang, Li; Popov, Dmitry; Meng, Yue; Wang, Junyue; Ji, Cheng; Li, Bing; Mao, Ho-kwang (2016) In-situ crystal structure determination of seifertite SiO\u003Csub>2\u003C\u002Fsub> at 129 GPa: Studying a minor phase near Earth’s core–mantle boundary. \u003Ci>American Mineralogist\u003C\u002Fi>,  101 (1). 231-234 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam-2016-5525'>doi:10.2138\u002Fam-2016-5525\u003C\u002Fa>","10.2138\u002Fam-2016-5525",{"id":203,"year":204,"html":205,"doi":206},6077895,2017,"Černok, Ana; Marquardt, Katharina; Caracas, Razvan; Bykova, Elena; Habler, Gerlinde; Liermann, Hanns-Peter; Hanfland, Michael; Mezouar, Mohamed; Bobocioiu, Ema; Dubrovinsky, Leonid (2017) Compressional pathways of α-cristobalite, structure of cristobalite X-I, and towards the understanding of seifertite formation. \u003Ci>Nature Communications\u003C\u002Fi>,  8. 15647 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1038\u002Fncomms15647'>doi:10.1038\u002Fncomms15647\u003C\u002Fa>","10.1038\u002Fncomms15647",{"id":208,"year":209,"html":210,"doi":211},15299382,2022,"Pang, Runlian; Yang, Jing; Du, Wei; Zhang, Aicheng; Liu, Shirong; Li, Rui (2022) New Occurrence of Seifertite and Stishovite in Chang’E‐5 Regolith. \u003Ci>Geophysical Research Letters\u003C\u002Fi>,  49 (12). e2022GL098722 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1029\u002F2022gl098722'>doi:10.1029\u002F2022gl098722\u003C\u002Fa>","10.1029\u002F2022gl098722",{"id":213,"year":214,"html":215,"doi":216},17739664,2024,"Liu, Tao, Wang, Xiong, Pu, Chang, Jing, Zhicheng (2024) Thermoelastic Properties of Seifertite at High Pressures and Temperatures: Implications for Negative Velocity Discontinuities in the D\" Layer. \u003Ci>Geophysical Research Letters\u003C\u002Fi>,  51 (23).  \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1029\u002F2024gl112270'>doi:10.1029\u002F2024gl112270\u003C\u002Fa>","10.1029\u002F2024gl112270",[],[219],{"id":220,"url":221,"label":222,"formula":223,"spacegroup":224,"year":225},12577,"\u002Fcif\u002F12577.cif","Dera 2002","Si O2","P b c n",2002,[227,228,229,230,231],"IMA2004-010","Seifertiet","UM1999-\u002F\u002F-SiO","UM1999-32-SiO","Unnamed (Orthorhombic Si Oxide)",[233,237,242,246,249,252,256,260,263,267,270,273],{"lang":234,"names":235},"ca",[236],"seifertita",{"lang":238,"names":239},"de",[240,241],"IMA 2004-010","Seifertit",{"lang":243,"names":244},"eu",[245],"Seifertita",{"lang":247,"names":248},"fr",[7],{"lang":250,"names":251},"it",[7],{"lang":253,"names":254},"ja",[255],"ザイフェルト石",{"lang":257,"names":258},"ko",[259],"자이페르타이트",{"lang":261,"names":262},"vi",[241],{"lang":264,"names":265},"zh",[266],"赛石英",{"lang":268,"names":269},"zh-cn",[266],{"lang":271,"names":272},"zh-hans",[266],{"lang":274,"names":275},"zh-hant",[276],"賽石英","Q641830",{"history":11,"applications":11}]