Tri-Flow Obsidian Rough Chunk! Birdseye Rhyolite featuring some great strata of

featuring some great strata of bright colors that come together to form a sunset scene

Measurements (inches - longest - approx):  5 x 4

Weight: Approx 17 Lbs

This box is from my own personal cutting rough pile

and its easy to see why the old time rockhounds loved it so much

Tri-Flow Obsidian Rough Chunk! Birdseye Rhyolite featuring some great strata ofTri 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