Description

Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. Obsidian is hard, brittle, and amorphous; it therefore fractures with sharp edges. In the past, it was used to manufacture cutting and piercing tools, and it has been used experimentally as surgical scalpel blades
(w) 3″ x (d) 5″ x (h) 6″
(w) 8 x (d) 13 x (h) 15 cm
Weight: 4.0 lbs – 2 kg
Color: Amber

441449
Mineral