Question

Corundum is a mineral with a hardness of 9 on the Mohs hardness scale. For which application would corundum most likely be useful?

seasoning food
grinding glass
making toothpaste
creating makeup

Answer 1

Corundum, with a hardness of 9 on the Mohs hardness scale, would be most useful for **grinding glass**. Its high hardness makes it an excellent abrasive material, suitable for grinding and polishing surfaces.