coesite

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coesite
coesite Min. (ˈkəʊsaɪt) [f. the name of L. Coes, Jr. (born 1915), U.S. chemist who first synthesized it + -ite1.] A modification of quartz formed under pressure.1954 R. B. Sosman in Science CXIX. 738/2, I have sought and obtained permission from Coes and Keat, both of whom are now at the Research La... Oxford English Dictionary
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Coesite
Occurrences In 1960, a natural occurrence of coesite was reported by Edward C. T. It was not expected that coesite would survive in high pressure metamorphic rocks. wikipedia.org
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keatite
keatite Min. (ˈkiːtaɪt) [f. the name of P. P. Keat (born 1923), U.S. chemist who first synthesized it + -ite1.] An artificial modification of silica produced at high pressures as tetragonal crystals.1954 [see coesite]. 1955 Trans. Brit. Ceramic Soc. LIV. 665 The polymerized silicic acid now crystall... Oxford English Dictionary
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Qingsongite
Associated minerals or phases include osbornite (titanium nitride), coesite, kyanite and amorphous carbon. wikipedia.org
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Eclogite
Coesite- and glaucophane-bearing eclogites have been found in the northwestern Himalaya. The oldest coesite-bearing eclogites are about 650 and 620 million years old and they are located in Brazil and Mali, respectively. wikipedia.org
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stishovite
stishovite Min. (ˈstɪʃəvaɪt) [f. the name of S. M. Stishov, Russian geochemist, who first synthesized it in 1961: see -ite1.] A dense, tetragonal polymorph of silica, formed at very high pressure and found in meteorite craters. Cf. coesite.1962 E. C. T. Chao et al. in Jrnl. Geophysical Res. LXVII. 4... Oxford English Dictionary
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Seifertite
See also Coesite Stishovite References Silicate minerals Orthorhombic minerals Minerals in space group 60 Silica polymorphs wikipedia.org
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Coconino Sandstone
Lechatelierite (silica glass), as well as coesite and stishovite (high pressure forms of SiO2) were formed during the impact of a meteorite into the Coconino wikipedia.org
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Stishovite
See also Coesite, a related mineral Thaumasite, another rare mineral with hexacoordinated octahedral silica References External links Properties of wikipedia.org
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Eduction (geology)
The unusually fast elevation preserves rare metastable minerals, e.g. diamonds and coesite. wikipedia.org
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Qianshan City, Anqing, Anhui, China - mindat.org
Qianshan City, Anqing, Anhui, China : Description: Coesite-bearing titanite UHP paragneisses Complex crystals with allanite core, zoisite intermediate zone and ...
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Pantasma
2019 study reported evidence for an impact origin of Pantasma, including the presence of melt-bearing breccia, impact glasses containing lechatelierite, coesite , the high-pressure silicon dioxide polymorph coesite, and extraterrestrial chromium isotope ratios. wikipedia.org
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Scandian orogeny
The present of eclogite containing the mineral coesite indicates high pressure and high-temperature burial of Baltican rocks, as much as 80 to 100 kilometers wikipedia.org
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Edward C. T. Chao
Born in Suzhou, China, he was best known for discovering two high-pressure forms of silica in nature: coesite and stishovite. He named the new mineral coesite in honor of the scientist who had synthesized the same phase in the laboratory seven years earlier. wikipedia.org
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Shocked quartz
Formation Shocked quartz is usually associated in nature with two high-pressure polymorphs of silicon dioxide: coesite and stishovite. Mantle xenoliths and sediments derived from them may contain coesite or stishovite. wikipedia.org
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