Tri-Flow Mahogany Obsidian Slab Lapidary Stone Slice Cut Rock Roan Leopard Marble This batch is of trimmer-tumbling-freeform

This batch is of trimmer-tumbling-freeform cab sized chunks

This material is collected by sheep herding nomads in the Sahara Desert of Morocco

Apple Valley Agate

This is a unpolished cut chunk

Tri-Flow Mahogany Obsidian Slab Lapidary Stone Slice Cut Rock Roan Leopard Marble This batch is of trimmer-tumbling-freeformTri Flow Obsidian comes from Glass Butte, Oregon, a gorgeous form of mahogany obsidian that often has multiple grains and currents of flow. Tri Flow can make some designer grade cabochons, as the obsidian between is usually pure and almost completely see through when held to light or cut thin enough, and the pattern waves are often in layers. The color generally comes from magnetite, which was present in the lava flow. Tri Flow Obsidian is getting