Name:

Mohs Hardness Scale

Absolute Hardness Mohs Scale Mineral
1 1 Talc
3 2 Gypsum
9 3 Calcite
21 4 Fluorite
48 5 Apatite
72 6 Orthoclase
100 7 Quartz
200 8 Topaz
400 9 Corundum
1600 10 Diamond
20 x 20 square graph