. TOU196 Green Tourmaline | The Gem Shop, Inc.

TOU196 Green Tourmaline


Tourmaline crystal from Brazil with green tourmaline and white inclusions.

21mm long


Tourmaline is a complex family of aluminum borosilicate minerals mixed with iron, magnesium, or other metals that, depending on the proportions of its components, may form as red, pink, yellow, brown, black, green, blue or violet. Its prismatic, vertically striated crystals may be long and slender, or thick and columnar, and are uniquely triangular in cross-section.