Quartz definition

Quartz

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noun

(1) A hard glossy mineral consisting of silicon dioxide in crystal form; present in most rocks (especially sandstone and granite); yellow sand is quartz with iron oxide impurities

(2) Colorless glass made of almost pure silica

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Etymology

from , probably from a West Slavic language (cf. Polish , Russian ), from , from .

Noun

The most abundant mineral on the earth's surface, of chemical composition silicon dioxide, Si O₂. It occurs in a variety of forms, both crystalline and amorphous. Found in every environment.