Black Tourmaline Rough (250 Grams) 10 to 40 mm Extra Quality Crystals Menu slabs and slices 1"-3" Size Range Average /

1"-3" Size Range Average /  GRADE A

honey-yellow hue

resulting in the distinctive carbon structure and unique properties of this mineral

Calcite is a mineral that forms mostly in limestone deposits and caves

Black Tourmaline Rough (250 Grams) 10 to 40 mm Extra Quality Crystals Menu slabs and slices 1"-3" Size Range Average /Small Raw Black Tourmaline Crystals Uniqueness Guaranteed: Every item is one of a kind, making them ideal for all projects or designs. Listing is for (250 grams) Avg Size Range: (10 to 40 millimeters) Material Origin: (India) Formed when boron forms compounds with iron sodium molecules, Schorl black tourmaline, or simply black tourmaline, derives its name from the German village of Zschorlau where it was first discovered in a nearby tin mine in the