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coesite
coesite A rare mineral produced when the shock wave from a meteorite passes through rock containing quartz. It is a form of silica produced at temperatures of 450–800°C and a pressure of 38 000 bar. Coesite-bearing sandstone fragments found in the vicinity of large craters are evidence that the crater is of meteoritic origin. It is named after the American chemist Loring Coes Jr (1915–78) who first synthesized it in 1953. See also stishovite.
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"coesite." A Dictionary of Astronomy. 1997. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. "coesite." A Dictionary of Astronomy. 1997. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O80-coesite.html "coesite." A Dictionary of Astronomy. 1997. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-coesite.html |
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coesite
coesite A variety of quartz (SiO2) produced at high pressures (greater than 4 GPa) and found in rocks subjected to impact by large meteorites.
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Cite this article
AILSA ALLABY and MICHAEL ALLABY. "coesite." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "coesite." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O13-coesite.html AILSA ALLABY and MICHAEL ALLABY. "coesite." A Dictionary of Earth Sciences. 1999. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-coesite.html |
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