Sheen Obsidian Rounds Size:1.5" The slab is approximately 5

The slab is approximately 5 mm thick

blue goldstone

It comes in a variety of colors from silver-gray to reddish brown

orange and green agate with small quartz center

30mm x 22mm with a 2mm drilled hole in the top

Sheen Obsidian Rounds Size:1.5" The slab is approximately 5Obsidian is created when a volcanic flow is cooled very quickly, into what is called volcanic glass. Sheen obsidian is a type of black obsidian that formed gas bubble layers during its cooling process to create layers of metallic reflection. These Obsidian Rounds are a smooth saucer shape, slightly domed on both sides, made of sheen obsidian, and polished to a high shine. The iridescent gold and silver effect changes with how the stone is tilted in