Obsidian Square It is estimated that this

It is estimated that this mineral is the fifth most abundant found on our planet and tenth most in the universe

trace amounts of Gallium

Pair your stone with a necklace and wire cage

The clarity and striation of this specimen are out of this world

Obsidian Square It is estimated that thisSize: 2. 0 in. Weight: 1. 2 oz Chemical Formula: SiO (Amorphous Volcanic Glass) Commonly found in Italy, Scotland, Mexico, Argentina, Greece, Iceland, Russia, New Zealand, Japan, and The United States. Obsidian is a naturally occurring form of volcanic glass. Obsidian forms as lava cools very rapidly and is not considered a mineral as its lacks any form of crystal structure. It is said that obsidian is actually a mistranslation from Pliny the Elder's