Tri-Flow Obsidian Slab – Deep Black Flow Pattern – Glass Butte Oregon banded chert layers They are very popular in

They are very popular in stores and also with kids

Once you've worked with both

While not always easy to cut due to internal cleavage planes

and is from an ancient lakebed over what is now the Green River formation

Tri-Flow Obsidian Slab – Deep Black Flow Pattern – Glass Butte Oregon banded chert layers They are very popular inTri Flow Obsidian Slab Deep Black Flow Pattern Glass Butte Oregon This exceptional larger slab of Tri Flow Obsidian showcases magnificent tri flow patterns with deep black mahogany glass creating mesmerizing movement throughout. Multiple grain currents flow through this Glass Butte volcanic material, creating patterns reminiscent of the extremely rare tiger tail obsidian. This designer grade obsidian will yield many exceptional cabochons and should