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L'Echelle de Mohs

Last release at
Bruits de fond
(This label has 11 releases)

The Mohs scale (L'Échelle de Mohs, NoT) 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...