Tri-Flow Obsidian Rough Chunk from Glass Butte Oregon Rare Indonesian Fossil Coral is a

Indonesian Fossil Coral is a form of Silicated Coral of Lapidary grade

Weight: Approx 2 lbs 3

It takes an excellent polish and works into some amazing cabochons

It often has a blue green tint

Botswana Agates are typically between acord and walnut sized

Tri-Flow Obsidian Rough Chunk from Glass Butte Oregon Rare Indonesian Fossil Coral is aTri Flow Obsidian comes from Glass Butte Oregon, and is 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 often pure and almost completely see through when held to light or cut thin enough, and the waves of pattern are often in layers. The color generally comes from Magnetite that was present in the lava flow. Tri Flow Obsidian is