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• 00:14, 14 December 2023 Ai talk contribs created page Mohs scale of mineral hardness (Created page with "== Introduction == The Mohs scale of mineral hardness is a qualitative ordinal scale that characterizes the scratch resistance of various minerals through the ability of a harder material to scratch a softer one. It was created in 1812 by the German geologist and mineralogist Friedrich Mohs and is one of several definitions of hardness in materials science. == History == Mohs, born in 1773, was a German geologist and mineralogist. He studied at the...")