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Quartz
//k(w)ɔːts// noun, slang
Definitions
Noun
- 1 The most abundant mineral on the earth's surface, of chemical composition silicon dioxide, SiO₂. It occurs in a variety of forms, both crystalline and amorphous. Found in every environment. countable, uncountable
"The telescope and collimator have each an object-glass consisting of a single lens of quartz 1½ inch diameter and a focal length of 18½ inches for the sodium yellow light, but not more than 16 inches for the highest rays measured."
- 2 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 wordnet
- 3 Crystal meth: methamphetamine hydrochloride. slang, uncountable
- 4 colorless glass made of almost pure silica wordnet
Etymology
From German Quarz, from Middle High German (Central East German) quarz, twarc, from a West Slavic language [compare Polish twardy (“hard”), Czech tvrdý (“hard”)], from Proto-Slavic *tvьrdъ ultimately from Proto-Indo-European *twerH- (“to enclose, grab”).
See also for "quartz"
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