Watermelon Tourmaline Slice Malachite (calcium & fluorine

(calcium & fluorine

The Paleolithic is a time frame roughly known as the Ice Age

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The many colors in which corundum occurs are due to the presence of other trace minerals

Watermelon Tourmaline Slice Malachite (calcium & fluorineElbaite, also known as Tourmaline, is a group of mixed crystals with the following major members, Elbaite, Dravite, Schorl, Buergerite, Tsilaisite, and Uvite. The general color range of the mineral's family are colorless, pink, green, blue, yellow, brown, and black. What distinguishes tourmalines are the three sided cross sections that are different than any other mineral.