Feb 03, 2020018332The Mohs scale of mineral hardness is an ordinal scale that tests the hardness of minerals based on their ability to scratch softer materials. The Mohs scale runs from 1 softest to 10 hardest. Talc has a Mohs hardness of 1, while diamond has a hardness of 10. The Mohs scale is only one hardness scale.Get Latest Price
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