Black tourmaline with excellent form and small hyaliteLocale: Erongo Mountain, Namibia Approx dimensions: 2. 75 x 2. 5 x 2" Approx weight: 375g This large glossy black tourmaline, known as schorl, features the Mercedes termination characteristic of the Erongo region. Erongo schorl typically has very high luster as seen in this specimen. The sides of the piece have beautiful chunky vertical striations, and the faces of the point have faint angular zig zag patterns of the crystal growth form visible. There