stishoviten.

/ˈstɪʃəvʌɪt/

Etymology: < the name of S. M. Stishov, Russian geochemist, who first synthesized it in 1961: see -ite suffix¹.

Mineralogy.

A dense, tetragonal polymorph of silica, formed at very high pressure and found in meteorite craters. Cf. coesite n.

ΘΚΠ

the world > the earth > minerals > types of mineral > silicates > tectosilicate > [noun] > silica > varieties

melanophlogite1876

lechatelierite1916

keatite1954

stishovite1962

1962 E. C. T. Chao et al. in Jrnl. Geophysical Res. LXVII. 419/1 Stishov and Popova (1961) recently synthesized a high-density polymorph of SiO₂ at 1200°–1400°C and at a pressure reported to be above 160,000 atmospheres... In honor of the senior author of the paper announcing the synthesis of this new polymorph, we propose to name the new mineral stishovite.

1971 I. G. Gass et al. Understanding Earth i. 35/1 The diamonds occasionally contain minute inclusions of coesite..but do not contain stishovite, another polymorph forming at even higher pressures.

1978 Nature 20 Apr. 714/2 Stishovite is the highest pressure polymorph of silica. It possesses the rutile structure with a density of 4·28 g cm⁻³ and is characterised by sixfold coordination of silicon by oxygen.

This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2018).

单词	stishovite
释义	stishoviten. /ˈstɪʃəvʌɪt/ Etymology: < the name of S. M. Stishov, Russian geochemist, who first synthesized it in 1961: see -ite suffix¹. Mineralogy. A dense, tetragonal polymorph of silica, formed at very high pressure and found in meteorite craters. Cf. coesite n. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > tectosilicate > [noun] > silica > varieties melanophlogite1876 lechatelierite1916 keatite1954 stishovite1962 1962 E. C. T. Chao et al. in Jrnl. Geophysical Res. LXVII. 419/1 Stishov and Popova (1961) recently synthesized a high-density polymorph of SiO₂ at 1200°–1400°C and at a pressure reported to be above 160,000 atmospheres... In honor of the senior author of the paper announcing the synthesis of this new polymorph, we propose to name the new mineral stishovite. 1971 I. G. Gass et al. Understanding Earth i. 35/1 The diamonds occasionally contain minute inclusions of coesite..but do not contain stishovite, another polymorph forming at even higher pressures. 1978 Nature 20 Apr. 714/2 Stishovite is the highest pressure polymorph of silica. It possesses the rutile structure with a density of 4·28 g cm⁻³ and is characterised by sixfold coordination of silicon by oxygen. This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2018). < n.1962
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