Wyoming Fossil Turritella Rough Chunk! Black Some stones may have a

Some stones may have a skin

as the obsidian between is often pure and almost completely see through when held to light or cut thin enough

Uruguay Amethyst is considered some of the highest grade Amethyst in the world

and they are in very high demand due to the super unique white on black imprints

Wyoming Fossil Turritella Rough Chunk! Black Some stones may have aWyoming Turritella is a form of fossil snails that has been highly silicated! These fossil snails create some really unique pattern within the stone, along with protruding from the surface for a pretty neat effect! The snails within are freshwater snails, and is from an ancient lakebed over what is now the Green River formation! It takes a pretty decent polish and works into some truly unique cabochons! Weight: Approx 3 lbs 10 oz Measurements (inches