BLT183 Black Tourmaline Designer Hardness ranks about a 7

Hardness ranks about a 7 on the Mohs Hardness Scale

From the Australian Outback

Weight: 11

Please Note: The pieces of copper photographed are representative of the material and may not be the exact pieces you receive

This limb cast features excellent preservation of the outside wood

BLT183 Black Tourmaline Designer Hardness ranks about a 7Black Tourmaline crystal. 2. 75" x 1. 75" x 3. 5" 1. 25 lb Black Tourmaline is also called Schorl, and accounts for ninety five percent of all Tourmaline in nature. It is black, or sometimes a deep blue that appears black. The term Schorl was in use before the 1400s, named for a town in Saxony, Germany, where Black Tourmaline was found in nearby tin mines. Black Tourmaline belongs to a complex family of aluminum borosilicate mixed with iron,