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Mohs Hardness Scale

Quick and easy review of what the numbers represent on Mohs hardness scale

QuestionAnswer
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
Created by: Danica
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