Black Tourmaline Micro-Bead Necklace

Albite, Elbaite, 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.