Quartz Definition

kwôrts

noun

Any of various crystallized forms of silica that are transparent, translucent, or colored, used in many ways, esp. as a gem or in making glass, lenses, or quartz crystals.

Webster's New World

Synonyms:

Synonyms:
quartz glass
crystal
lechatelierite
vitreous silica

Other Word Forms of Quartz

Noun

Singular:

quartz

Plural:

quartzes

Origin of Quartz

German Quarz, from Middle High German twarc, probably from a West Slavic language (compare Czech tvrdý (“hard"), Polish twardy (“hard"), Russian твёрдый (tvjórdyj, “hard")), from Old Church Slavonic тврьдъ (tvrÄdÅ, “firm"), from Proto-Slavic *tvÑŒrdÑŠ.

From Wiktionary
German Quarz from Middle High German quarc of Slavic origin

From American Heritage Dictionary of the English Language, 5th Edition