Tri-Flow Obsidian Rough Chunk from Glass Butte Oregon Mookaite Jasper This agate shows some indications

This agate shows some indications of possibly being a bog agate

due to a contractor failing to properly cover stones

it is well worth it

and the structure of the deposit shows it is more metamorphic in nature

Most Septarian Nodules come from Utah and Morocco

Tri-Flow Obsidian Rough Chunk from Glass Butte Oregon Mookaite Jasper This agate shows some indicationsTri 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