Tri-Flow Obsidian Slab - Swirling Mahogany Pattern - Glass Butte super rare gem this helps it work into

this helps it work into some amazing and captivating cabochons

but not very bright

nor does it appear to be a type of marble

Finish: Polishes well with minimal treatment

it is a pretty unique color scheme

Tri-Flow Obsidian Slab - Swirling Mahogany Pattern - Glass Butte super rare gem this helps it work intoTri Flow Obsidian Slab Swirling Mahogany Pattern Glass Butte Oregon Classic Beautiful slab of Tri Flow Obsidian displaying the swirling patterns classic to this material from Glass Butte. This obsidian will be stunning once polished, as the polish will greatly enhance the flow patterns and reveal the beauty hidden beneath. The multiple flow lines and grain currents create mesmerizing designs that produce designer grade cabochons. SPECIFICATIONS