Tri-Flow Obsidian Rough Chunk! Coquina With its well defined moss

With its well defined moss

and color given by present minerals

and letting the package set for at least 5 minutes afterwards

Here is a stunning slab of Psilomelane Marcasite Plume Agate

Most are tumbler sized chunks

Tri-Flow Obsidian Rough Chunk! Coquina With its well defined mossTri 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