Mexican Velvet Obsidian Slab - Prime Color Flash Chatoyancy mirror polish quality Stromatolites are one of the

Stromatolites are one of the earliest known fossils

Once open for hand digging

Being thick cut and fairly solid

This piece has great visual contrast and a well-balanced composition—making it ideal for high-end cabbing

and sometimes

Mexican Velvet Obsidian Slab - Prime Color Flash Chatoyancy mirror polish quality Stromatolites are one of theMexican Velvet Obsidian Slab Prime Color with Flashing Chatoyancy Old Stock Rare Material This stunning slab of old Mexican velvet obsidian showcases prime color and flashing chatoyancy that shimmers with green, gold, and purple when moved. With substantial size, this piece has plenty of room for multiple cabochons. This is a slab of very rare material you won't want to miss the mine is essentially depleted and most current material is old stock.