quartz

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[edit] English

[edit] Etymology

German Quarz from Middle High German twarc, probably from a West Slavic language (cf. Polish twardy (hard), Russian твёрдый (hard)), from Old Church Slavonic тврьдъ (firm), from Proto-Slavic *tvьrdъ.

[edit] Pronunciation

[edit] Noun

Singular
quartz

Plural
countable and uncountable; plural quartzes

quartz (countable and uncountable; plural quartzes)

  1. (mineralogy) 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.

[edit] Derived terms

[edit] Translations

[edit] See also

See rock, granite, pegmatite