keatiten.

/ˈkiːtʌɪt/

Etymology: < the name of P. P. Keat (born 1923), U.S. chemist who first synthesized it + -ite suffix¹.

Mineralogy.

An artificial modification of silica produced at high pressures as tetragonal crystals.

ΘΚΠ

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

melanophlogite1876

lechatelierite1916

keatite1954

stishovite1962

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 Laboratories of the Norton Company in Worcester, Mass., to propose names for the new phases—namely, coesite for the phase produced at 35,000 atm., and keatite for the phase produced hydrothermally.

1955 Trans. Brit. Ceramic Soc. 54 665 The polymerized silicic acid now crystallizes..to the crystalline tetragonal phase, keatite.

1959 Zeitschr. f. Kristallogr. CXII. 410 The density of keatite (50 /gr·cm³) is intermediate to that of cristobalite..and quartz.

1962 C. Frondel Dana's Syst. Mineral. (ed. 7) III. 308 Keatite has been synthesized by heating commercial dried silica..in water containing an alkali.

This entry has not yet been fully updated (first published 1976; most recently modified version published online June 2018).

单词	keatite
释义	keatiten. /ˈkiːtʌɪt/ Etymology: < the name of P. P. Keat (born 1923), U.S. chemist who first synthesized it + -ite suffix¹. Mineralogy. An artificial modification of silica produced at high pressures as tetragonal crystals. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > tectosilicate > [noun] > silica > varieties melanophlogite1876 lechatelierite1916 keatite1954 stishovite1962 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 Laboratories of the Norton Company in Worcester, Mass., to propose names for the new phases—namely, coesite for the phase produced at 35,000 atm., and keatite for the phase produced hydrothermally. 1955 Trans. Brit. Ceramic Soc. 54 665 The polymerized silicic acid now crystallizes..to the crystalline tetragonal phase, keatite. 1959 Zeitschr. f. Kristallogr. CXII. 410 The density of keatite (50 /gr·cm³) is intermediate to that of cristobalite..and quartz. 1962 C. Frondel Dana's Syst. Mineral. (ed. 7) III. 308 Keatite has been synthesized by heating commercial dried silica..in water containing an alkali. This entry has not yet been fully updated (first published 1976; most recently modified version published online June 2018). < n.1954
随便看	mock chervil mock colour mock cream mock croc mock gillyflower mock gold mock goose mock heather mock jack mock liquorice molt molted molten molten grease molten-blue molten-crystal molten-golden moltenable moltenblue moltencrystal moltener moltenest moltengolden moltenly moltenner