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) 9″ x (d) 9″ x (h) 5″
(w) 23 x (d) 23 x (h) 13 cm
Weight: 20.0 lbs – 9 kg
Color: Green
451614
Mineral
