Tri-Flow Obsidian Rough Chunk! Regency Rose Plume Agate but it does have some

but it does have some softer minerals like Calcite and Feldspar

Silver Sheen Obsidian

It is one of those that when you cut a high grade slab

Tiffany Stone is a form of Opal and Bertrandite

Measurements (inches - longest - approx): 4 x 2

Tri-Flow Obsidian Rough Chunk! Regency Rose Plume Agate but it does have someTri 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