Tri-Flow Obsidian Rough Chunk from Glass Butte Oregon Indonesian This is a very unique

This is a very unique opportunity to have some real dinosaur bone in your collection

Each one shows some good potential

and is very popular among rockhounds for the ease and quality of the mirror polish it can take

Measurements (inches - longest - approx):  3

After seeing some slabs of this

Tri-Flow Obsidian Rough Chunk from Glass Butte Oregon Indonesian This is a very uniqueTri 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