1. quartz - noun
· colorless glass made of almost pure silica
Synonym(s): quartz_glass, vitreous_silica, lechatelierite, crystal
Hypernym(s): natural_glass
2. quartz - noun
· 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
Hypernym(s): mineral
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