Is Obsidian sharper than steel?

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Tags

1. #cutting
2. #being
3. #quality
4. #scalpels
5. #thick
6. #nanometers
7. #surgical
8. #times
9. #crafted
10. #steel
11. #sharper
12. #obsidian
13. #blade
14. #blades
15. #glass
16. #knife
17. #about