Ordinal Mohs’ hardness scale with minerals in boxes with
a hardness of 1-10. The mineral in level 10, diamond, is
included as a diamond tool.
The set includes:
1. Talk
2. Gypsum
3. Calcite
4. Fluorite
5. Apatite
6. Orthoclase
7. Quartz
8. Topaz
9. Corundum
10. Diamond tool
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