novaculite
/noʊˈvækjəlaɪt/
noun
- A very hard, fine-grained type of rock (a form of chert) that is used for making sharpening stones (whetstones) and was historically used by Native Americans for tools and weapons.
- The ancient arrowhead was crafted from novaculite, prized for its sharpness.
- Novaculite deposits in Arkansas have been mined for centuries for whetstones.
- Woodworkers often use a novaculite stone to put a fine edge on their chisels.