BLT183 Black Tourmaline Rainbow Sapphire Explore the mineral-rich region of

Explore the mineral-rich region of Wisconsin with veteran rockhound Robert Beard's Rockhounding Wisconsin and unearth 84 of the state's best rockhounding spots

which is approximately 5 mm thick

with moss agate and a vugg with druzy

8 cm x 3 cm

Rose Quartz from Brazil

BLT183 Black Tourmaline Rainbow Sapphire Explore the mineral-rich region ofBlack 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,