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Rough Mahogany Obsidian from Mexico. Obsidian is an organically created glass, formed through felsic lava that rapidly cools after exploding past the earth’s crust. It exhibits conchoidal fracturing and is a hardness of 5 to 5.5 on the Mohs scale. Typical Obsidian is a semi-translucent black that can have slight tints of green or brown, while Mahogany Obsidian has a large amount of reddish-brown along with the black coloring.
Pictured wet in the primary image.
Pieces are 5lbs+
**Minimum Order 5 lbs**
If you have a preference on the size or number of rocks you will receive, please describe this in your order notes at checkout. Smaller quantity orders may require longer order processing time as rock may need to be cut or broken.