Question

Compared to other minerals, a mineral that is ranked higher on the Moh’s scale will be:

a. harder
b. more dense
c. shinier
d. more reactive

Answer 1

the answer is A. harder

Answer 2

Answer is: a. harder.

Friedrich Mohs devised a scale that tested mineral hardness, which means the resistance of a mineral to being scratched. This scale (from 1 to 10) is known as the Mohs Hardness Test.

For examples:

fingernail (hardness = 2.5).

copper penny (hardness = 3)

glass plate or steel knife (hardness = 5.5)

steel file (hardness = 6.5).

According to this scale hardness of the mineral is between 5.5 and 6.5.