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English
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.
Pronunciation
Noun
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Singular quartz |
Plural countable and uncountable; plural quartzes |
quartz (countable and uncountable; plural quartzes)
- (mineralogy) 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.
Related terms
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