Mohs' hardness scale provides an index and relative measure of mineral hardness (i.e., resistance to abrasion). German geologist Frierich Mohs (1773–1839) devised a scale with specimen minerals that offered comparison of...

Rough measure of the resistance of a smooth surface to scratching or abrasion, expressed in terms of a scale devised by German mineralogist Friedrich Mohs in 1812. Minerals are ranked in comparison with the Mohs scale, which is made up of 10 minerals...

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...

ABSTRACT The Mohs scale is enshrined in geoscience curricula as a simple and effective tool for identifying minerals and understanding the influence of crystal structure and chemistry on physical properties; e.g., hardness. Measuring scratch resistance is different from measuring hardness, however, because scratching...

ABSTRACT Eleventh and twelfth grade students in five earth science classes made charts or mineral facts, mnemonic cartoon drawings, and corresponding poetry couplets for minerals on the Mohs scale of hardness. Students' products revealed they enjoyed the activity and learned many mineral concepts....