tridymiten.

/ˈtrɪdɪmʌɪt/

Etymology: < German tridymit (vom Rath 1866), < Greek τρίδυμος threefold, < τρι- tri- comb. form + -δυμος, as in δίδυμος twin; named in allusion to its compound forms consisting of three individual crystals.

Mineralogy.

A crystallized form of silica, occurring in small hexagonal tables, found in trachyte and other igneous rocks.

ΘΚΠ

the world > the earth > minerals > types of mineral > silicates > tectosilicate > [noun] > quartz > high temperature quartzes

tridymite1868

cristobalite1888

1868 J. D. Dana Syst. Mineral. (ed. 5) 805 Tridymite occurs in small hexagonal tables, colorless and transparent, which are usually compound, and mostly of three individuals.

1888 F. Rutley Rock-forming Minerals 130 Tridymite is essentially a volcanic mineral.

This entry has not yet been fully updated (first published 1914; most recently modified version published online March 2022).

单词	tridymite
释义	tridymiten. /ˈtrɪdɪmʌɪt/ Etymology: < German tridymit (vom Rath 1866), < Greek τρίδυμος threefold, < τρι- tri- comb. form + -δυμος, as in δίδυμος twin; named in allusion to its compound forms consisting of three individual crystals. Mineralogy. A crystallized form of silica, occurring in small hexagonal tables, found in trachyte and other igneous rocks. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > tectosilicate > [noun] > quartz > high temperature quartzes tridymite1868 cristobalite1888 1868 J. D. Dana Syst. Mineral. (ed. 5) 805 Tridymite occurs in small hexagonal tables, colorless and transparent, which are usually compound, and mostly of three individuals. 1888 F. Rutley Rock-forming Minerals 130 Tridymite is essentially a volcanic mineral. This entry has not yet been fully updated (first published 1914; most recently modified version published online March 2022). < n.1868
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