Obsidian is an igneous rock that forms when molten rock cools so rapidly that atoms are unable to arrange themselves into a crystalline structure.  The result is a volcanic glass with a smooth uniform texture.


This particular slab has beautiful gray striations throughout. This happens when gas bubbles form within the obsidian and as it cools, the gas bubbles get stretched resulting in the striped pattern seen in this slab. Perfect as a bookend or table centerpiece.


Obsidian is said to aid communication and stimulates personal growth.


Weight: 1.5 lbs

Dimensions: 4" x 4" x 3"



Polished Obsidian Slab