🖤

Free Obsidian Identifier

Identify obsidian instantly with our free online obsidian identifier. Powered by AI — completely free, no sign-up required.

About This Tool

Obsidian is a naturally occurring volcanic glass formed when lava extruded from a volcano cools rapidly with minimal crystal growth. Our AI can identify black obsidian, snowflake obsidian, mahogany obsidian, and more.

📸 Tips for Best Results

✓Capture the smooth, glass-like texture
✓Show the curved, shell-like fracture surfaces (conchoidal fracture)
✓Look for sharp edges
✓Note any inclusions (like the white 'snowflakes' in snowflake obsidian)

🧠 Interesting Facts

•Because it lacks crystal structure, obsidian blade edges can reach almost molecular thinness
•It was highly valued in Stone Age cultures for making arrowheads and cutting tools
•Obsidian is metastable at the Earth's surface and over time devitrifies (becomes crystalline)
•It is produced from felsic lava, rich in lighter elements such as silicon, oxygen, aluminum, sodium, and potassium

📸