Identifying Rocks and Minerals/Hardness
Identifying Rocks and Minerals/Hardness. From Wikibooks, open books for an open world < Identifying Rocks and Minerals. Jump to navigation Jump to search. 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