Chalcedony (noun) Definition, Meaning & Examples

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noun, plural chal·ced·o·nies.
  1. a microcrystalline, translucent variety of quartz, often milky or grayish.
noun plural -nies
  1. a microcrystalline often greyish form of quartz with crystals arranged in parallel fibres: a gemstone. Formula: SiO 2
    Chalcedony (noun) Definition, Meaning & Examples

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