Tri-Flow Obsidian Rough Chunk! Richardson Rock Ranch Some are large enough to

Some are large enough to at least glue and get 2-3 more slabs

Velvet Obsidian has a nice velvety display of flashes of color

Measurements (inches - longest - approx): 5 x 1

Big Diggins is now fairly rare

this is a piece with an ancient story

Tri-Flow Obsidian Rough Chunk! Richardson Rock Ranch Some are large enough toTri 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