The Mohs scale is a measure of what of a mineral?
Mohs scale is a scale of 1 to 10 base on the hardness of a mineral. Talc would be a 1 and diamond is a 10.
The scale is not linear however, as the differences between numbers is not uniform. For example, Calcite (3) is 3 times harder than Gypsum (2) but Fluorite (4) is only about twice as hard as Calcite.