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What is the hardness of chalk on the mohs hardness scale?

chalk Mohs scale
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What is the hardness of chalk on the mohs hardness scale?

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Chalk is actually a rock. The Mohs hardness scale is meant to measure a mineral’s relative hardness in relation to other minerals. But chalk is comprised mainly of calcium carbonate, which is the mineral calcite. Calcite has a Mohs hardness of 3.

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