Sheen Obsidian, Tumbled Stone, 1 lb lot Polyhedroids Prehnite is a silicate mineral

Prehnite is a silicate mineral and this lot comes from Australia

comes in varying hues of sunset colors and can be found all over the world

and black Nature's Paintbrush framed by Howlite and Black Onyx

67mm x 37mm (each)

Merkabah shape carved out of solid black obsidian

Sheen Obsidian, Tumbled Stone, 1 lb lot Polyhedroids Prehnite is a silicate mineralObsidian is created when a volcanic flow is cooled very quickly, into what is called volcanic glass. Sheen obsidian is a type of black obsidian that formed gas bubble layers during its cooling process to create layers of metallic reflection. A 1 lb lot includes pieces from . 25" to 1. 5" Price per 1 pound lot.