Obsidian
From Mistipedia
Obsidian is a type of is a volcanic stone and naturally occurring glass that is capable of holding a fine edge than steel. The obsidian daggers dating to the Stone Age were perhaps the first slashing weapon ever made.
Obsidian is a type of is a volcanic stone and naturally occurring glass that is capable of holding a fine edge than steel. The obsidian daggers dating to the Stone Age were perhaps the first slashing weapon ever made.