Rank these minerals from hardest to softest on the Mohs hardness scale β gem or dud?
The Mohs hardness scale runs from 1 to 10 and gives each mineral a fixed, exact value. It's used everywhere from geology labs to jewellery shops across the UK.
Put the options in the correct order. Drag the β Ώ icon to reorder.
1
Quartz2
Talc3
Diamond4
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