What is the Mohs scale?

Answer 1

The Mohs Scale of Hardness is based on the hardness of a certain mineral:

1. Talc

2. Gypsum

3.Calcite

4. Fluorite

5. Apatite

6. Orthoclase Feldspar

7. Quartz

8. Topaz

9. Corundum

10. Diamond

Answer 2

The Mohs scale identifies hardness. Example: on a scale of 1-10, diamond is 10 and pencil graphite is 1.5.
determine relative hardness of minerals, specifically, although it can be extended to most solids. For example, my fingernail is harder than lead, but not steel, so the calcium compound in my fingernail is somewhere between the two on the Mohs scale. By comparing a very long list of things, we can make a very accurate table of what will wear down what easier, very useful information for engineering things like bearings. Very good article in the following link.

Answer 3

if is scratched by fingernail is a1 if scratched by acoin is a 3 if scratches a glass a 5 if easily by a knife a 7 if knife Barely scratches a 9 if scratches a knife a 10