Mohs Ritzhärte Standards

MOHS hardness scale

Scratch-resistant glass

Moh's hardness scale

Hardness Material
1 Talcum powder
2 Rock salt
3 Calcite
4 Fluorspar
5 Apatite
6 Feldspar
6,5 Borosilicate glass
7 Quartz
8 Topaz
9 Corundum, sapphire, ruby
10 Diamond