Translations:Adventist Youth Honors Answer Book/Nature/Rocks & Minerals/10/en
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4. What is meant by Mohs' scale of hardness? Name the minerals in order in Mohs' scale.
The Mohs scale of mineral hardness characterizes the scratch resistance of various minerals through the ability of a harder material to scratch a softer material. It was created in 1812 by the German mineralogist Friedrich Mohs and is one of several definitions of hardness in materials science.