Question

Use the diagram to answer each question.
Mohs Hardness Scale
Mineral
Hardness
Talc
1
Gypsum
2
Calcite
3
Fluorite
4
Apatite
5
Feldspar
6
Quartz
7
Topaz
8
Corundum
9
Diamond
10

What would you expect to happen if you rubbed a mineral of hardness 7.5 against a piece of quartz?

Answer 1

Answer:

the mineral will disappear