Outline 10 standard minerals according to Mohs scale.

1. Talc
2. Gypsum
3. Calcite
4. Fluorite
5. Apatite
6. Orthoclase
7. Quartz
8. Topaz
9. Corundum
10. Diamond

Mohs Scale of Mineral Hardness

1. Talc (1)
- Softest mineral, can be scratched by a fingernail

2. Gypsum (2)
- Can be scratched by a fingernail with moderate force

3. Calcite (3)
- Can be scratched by a copper penny or calcite

4. Fluorite (4)
- Can be scratched by a steel knife or fluorite

5. Apatite (5)
- Can be scratched by a knife blade

6. Orthoclase (6)
- Can be scratched by a glass plate

7. Quartz (7)
- Can scratch glass

8. Topaz (8)
- Can scratch quartz

9. Corundum (9)
- Can scratch topaz

10. Diamond (10)
- Hardest known mineral, can only be scratched by itself