Newstone: Rough Black Tourmaline Crystals from Brazil - Extra Large 6cm-8cm Raw Natural Stones for Cabbing, Cutting, Lapidary, Tumbling, and Polishing & Reiki Crystal Healing Quantity: 1 piece of Extra Large Black tourmaline ( schorl ) rough stone Stone Size: 6cm to 8cm large Includes authentic Newstone certified stone card to guarantee its origin(Brazil). Each and every specimen is unique and you will receive ones similar to the image shown. Newstone is a registered brand of Newstone International Corporation.