quartz
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(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 |
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Related Words: amethyst, aventurine, cairngorm, calcedony, chalcedony, citrine, common topaz, false topaz, mineral, rock crystal, rose quartz, smoky quartz, sunstone, topaz, transparent quartz |
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| 2. |
(noun) colorless glass made of almost pure silica |
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Synonyms: crystal, lechatelierite, quartz glass, vitreous silica |
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Related Words: natural glass |
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