Large Obsidian from Glass Butte, Oregon

Rough, uncut
Weight: 6.12 lbs
Size:  9" wide x 5" tall x up to 7" deep
Sprayed with water to show coloring

Could have rainbow or another color of sheen when cut.
Ideal rock for cabbers, slabbers, flint knappers, or used as display.

Large Glass Butte Obsidian in the Rough