dioptasen.

/dʌɪˈɒpteɪs/

Etymology: < French dioptase (Haüy 1801), irregularly < Greek δι-, δια- through + ὀπτός seen, visible: compare διόπτης a looker through.

Mineralogy.

A translucent silicate of copper, crystallizing in six-sided prisms, called emerald copper ore.

ΚΠ

1804 W. Nicholson tr. A.-F. de Fourcroy Gen. Syst. Chem. Knowl. II. 430 Dioptase is an ore of copper.

1868 J. D. Dana Syst. Mineral. (ed. 5) 402 Dioptase occurs disposed in well defined crystals and amorphous on quartz.

This entry has not yet been fully updated (first published 1896; most recently modified version published online March 2022).

单词	dioptase
释义	dioptasen. /dʌɪˈɒpteɪs/ Etymology: < French dioptase (Haüy 1801), irregularly < Greek δι-, δια- through + ὀπτός seen, visible: compare διόπτης a looker through. Mineralogy. A translucent silicate of copper, crystallizing in six-sided prisms, called emerald copper ore. ΚΠ 1804 W. Nicholson tr. A.-F. de Fourcroy Gen. Syst. Chem. Knowl. II. 430 Dioptase is an ore of copper. 1868 J. D. Dana Syst. Mineral. (ed. 5) 402 Dioptase occurs disposed in well defined crystals and amorphous on quartz. This entry has not yet been fully updated (first published 1896; most recently modified version published online March 2022). < n.1804
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