Multi-Color Tourmaline- Brazil Sulfur or kaolinite

or kaolinite

“Seeding” a pearl means inserting a bead of a predetermined shape and size into the tissue of a mollusk in order to control the shape of the pearl

with brains as large (and in some cases larger) than modern man

Another type can be found as well formed crystals

Multi-Color Tourmaline- Brazil Sulfur or kaoliniteAlbite (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.