🌋🪨⚫🔪

#obsidian #volcanic glass #sharp rock #conchoidal fracture #glassy texture #black glass #natural glass

⚫️🪨🔪

#obsidian blade #stone tool #sharp rock #prehistoric weapon #cutting edge #conchoidal fracture #black point

🌋🪨🔪

#obsidian tool #volcanic glass blade #sharp rock #prehistoric tool #stone age knife #volcano glass