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Mohs Hardness Scale
Quick and easy review of what the numbers represent on Mohs hardness scale
Question | Answer |
---|---|
1 on Mohs scale | Talc: softer than a fingernail |
2 on Mohs scale | Sulfur: softer than a fingernail |
3 on Mohs scale | Calcite: harder than a fingernail |
4 on Mohs scale | Fluorite: harder than a fingernail |
5 on Mohs scale | Apatite: as hard as an iron nail |
6 on Mohs scale | Feldspar: harder than window glass |
7 on Mohs scale | Quartz: as hard as a steel file |
8 on Mohs scale | Topaz: harder than a steel file |
9 on Mohs scale | Corundum: harder than a steel file |
10 on Mohs scale | Diamond: hardest known substance |