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Amethyst

  Link Details for: Amethyst
Link Title: Amethyst Open in a new window
Link URL: http://www.chem.ox.ac.uk/mom/amethyst/default.html
Link Details: Amethyst is a variety of quartz with purple coloration which is caused by impurities of iron or manganese.
Category: Top : Science : Chemistry : Inorganic : Inorganic_Compounds
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Amethyst