Tri-Flow Mahogany Obsidian Slab! Lapidary Stone Slab! Script Stone there is very little marcasite

there is very little marcasite that compares

Here is a stunning 4 lbs 2 oz Polished display specimen showing some high grade flash

generally with the outside appearance well preserved

This slab has been cut thin to give it the see through effect between pattern

This is B–C grade rough

Tri-Flow Mahogany Obsidian Slab! Lapidary Stone Slab! Script Stone there is very little marcasiteTri 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