RARE Fire Glass Buttes Obsidian Rough Chunk Lapidary Stone Magnetite Fossil Coprolite Obsidian can also be great

Obsidian can also be great for knapping

Weight: Approx  13 oz

The plug does show some wear

Due to the darkness of the slab

Here is a gorgeous batch of lapidary grade Chevron Amethyst from Mexico

RARE Fire Glass Buttes Obsidian Rough Chunk Lapidary Stone Magnetite Fossil Coprolite Obsidian can also be greatFire Obsidian is a bright fiery flash, which can sometimes contain other bright colors. It tends to run along a strand, and takes a lot of practice, patience, and skill to cut slabs and cabs of it. It is one that is recommended for lapidary veterans. Fire Obsidian gets the color and flash from magnetite, which are tiny microscopic metal flecks, that are embedded within the volcanic glass. Fire Obsidian is easily one of the most rare forms of obsidian