Glossary
Obsidian
Obsidian Sometimes referred to as volcanic glass, this is a form of stone that has no internal blocky or crystalline structure. Consequently, it can be made to have an exceptionally sharp edge, though it is typically brittle.
Obsidian Sometimes referred to as volcanic glass, this is a form of stone that has no internal blocky or crystalline structure. Consequently, it can be made to have an exceptionally sharp edge, though it is typically brittle.