Highgrade Mexican Velvet Obsidian Rough Chunk! Agatized Coprolite These are the same opal

These are the same opal eggs we use in our bottled jars of Opal Eggs

This slab is unique in the fact that it appears to have water lines (osmosis) within it

It can be so bright that the camera thinks it is a light source

and is often mostly fracture free

The other photos have been taken wet to simulate a polish

Highgrade Mexican Velvet Obsidian Rough Chunk! Agatized Coprolite These are the same opalMexican Velvet Obsidian is a higher quality obsidian with loads of magnetite that create the velvet like pattern and flashes within! It often features many different colors, and it works into some truly amazing cabochons! It takes an excellent polish and generally cuts fracture free! They can also make awesome pendants or can be great for wire wrapping projects! The color in velvet obsidian is light sensitive. In order to see it, you need to be under