Tri-Flow Obsidian Rough Chunk from Glass Butte Oregon Spectrolite and I worked it off

and I worked it off and on over the years

but it is well worth the trouble

but blue lace agate quickly gained popularity by its ability to hold the blue and work into some amazing slabs for cabs

but has since become very rare

Cold Mountain Thundereggs are a really neat form of rhyolite and agate filled thundereggs from Mexico

Tri-Flow Obsidian Rough Chunk from Glass Butte Oregon Spectrolite and I worked it offTri 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