Tri-Flow Obsidian Rough Chunk from Glass Butte Oregon Mookaite Jasper Those three are Birdseye Rhyolite

Those three are Birdseye Rhyolite

due to a contractor failing to properly cover stones

Most Septarian Nodules come from Utah and Morocco

Velvet Obsidian can have a skin that covers the pattern

Origin of this incredible specimen is unknown

Tri-Flow Obsidian Rough Chunk from Glass Butte Oregon Mookaite Jasper Those three are Birdseye RhyoliteTri 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