TriFlow Mahogany Obsidian Slab! Lapidary Stone Slab! Old Vein Crazy Lace Agate Its hard to say for

Its hard to say for certain though

Here is a gorgeous slab of Shrinkwood Petrified Wood from Texas

Weight: Approx 2 lbs 2

and some are freeform cab-sized chunks

Here is a stunning larger old stock slab of Mystery Agate

TriFlow Mahogany Obsidian Slab! Lapidary Stone Slab! Old Vein Crazy Lace Agate Its hard to say forTri 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