Black Tourmaline Top Polished Points / 1.5-3" AVG - 1 KILO LOT Menu Arrowhead Pieces measure approximately 7 to

Pieces measure approximately 7 to 9 inches (AVERAGE SIZE)

it sometimes gets partially replaced by malachite when the stone undergoes weathering for long periods of time

Total length is 3 Inches) Sizes Vary Slightly

5 to 8 inches

Indigo gabbro is a special kind of gabbro that also contains a wide variety of other minerals like quartz and feldspar as inclusions

Black Tourmaline Top Polished Points / 1.5-3" AVG - 1 KILO LOT Menu Arrowhead Pieces measure approximately 7 toQuantity: 1 kilogram Average size range: 1. 5 to 3 inches 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 late 1300s.