Obsidian - 10 pounds* Rough Stone is a rare variety of

is a rare variety of quartz characterized by its stunning chatoyancy (cat's eye effect) and vibrant coloration

allowing it to absorb and retain the scent of oils for an extended period

black tourmaline typically exhibits a deep black color

Density: The density of purpurite can vary depending on its composition and any impurities it may contain

with varying degrees of transparency depending on the specific specimen

Obsidian - 10 pounds* Rough Stone is a rare variety ofNatural Obsidian from Mexico Mostly large pieces 1 5 pieces per 10 pounds *Requires 20lbs of shipping space Obsidian is a naturally occurring volcanic glass that typically forms when lava cools rapidly without sufficient time for crystal growth. Color: Obsidian comes in various colors, including black, brown, gray, and green. The most common is black obsidian, which is often referred to simply as "obsidian." Hardness: Obsidian has a hardness of