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  1. The Mineral and Gemstone Kingdom: Image Photo Gallery

    Although Amethyst, the purple variety of Quartz, and Citrine, the yellow/orange variety of Quartz belong to the same scientific mineral classification, they have always been distinguished as …

  2. Amethyst Quartz: The purple gemstone Amethyst information and …

    Amethyst is the purple variety of the mineral Quartz, and is its most famous and valuable gem variety. Quartz also contains other gemstones such as Citrine, Rose Quartz, and Smoky …

  3. Amethyst Quartz - The Mineral and Gemstone Kingdom

    Amethyst Quartz - The Mineral and Gemstone KingdomMixture of Amethyst and Milky Quartz (or clear Quartz). It is purple on top and white or clear on the bottom. It may also be banded …

  4. Canadian Amethyst - The Mineral and Gemstone Kingdom

    Canadian Amethyst - The Mineral and Gemstone KingdomAmethyst with an internal coating of red Hematite under the crystal surface, found near Thunder Bay, Ontario, Canada.

  5. Siberian Amethyst - The Mineral and Gemstone Kingdom

    Siberian Amethyst - The Mineral and Gemstone KingdomTerm originally used to describe very deeply colored Amethyst from Siberia in Russia. May also be incorrectly used in the gem trade …

  6. African Amethyst - The Mineral and Gemstone Kingdom

    African Amethyst - The Mineral and Gemstone KingdomAmethyst originating from the continent of Africa. This term in the gem trade usually applies to deeply colored or darker Amethyst.

  7. amethyst | Dirty Rockhounds

    It has been ages since I was on here and I don't quite know how to pick up where I left off. But I still have Thunder Bay amethyst and can send a flat rate USPS mailer, medium, for $40.

  8. Ametrine: The gemstone Ametrine (Amethyst, Citrine) info

    Detailed gemstone and jewelry information guide about the amethyst/citrine gemstone ametrine: information & pictures.

  9. Green Amethyst - The Mineral and Gemstone Kingdom

    Green Amethyst - The Mineral and Gemstone KingdomLight green gem form of Quartz that is artificially colored by heat-treating certain types of Amethyst. Also known as "Prasiolite".

  10. Periodic Table of Elements - The Mineral and Gemstone Kingdom

    The Periodic Table of ElementsPERIODIC TABLE of the Elements