Glossary
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.
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.