quartz [kwɔ:ts]

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n. crystal��lechatelierite��quartz glass��vitreous silica

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1. The quartz in his pocket made little sound.
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2. To this class of substance belong mica, porcelain, quartz, glass, wood, etc.
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3. What we do know is that the earliest lenses were made from quartz and were usually set into bone, metal, or leather.
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n.
  1. colorless glass made of almost pure silica
  2. a hard glossy mineral consisting of silicon dioxide in crystal form; present in most rocks (especial

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quartz
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amethystine quartz
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quartz plate
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bastard quartz
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quartz rock
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