The Mohs Hardness Scale illustrates mineral hardness from 1 (talc) to 10 (diamond), using common objects to demonstrate relative scratch resistance.
Infographic of the Mohs Hardness Scale showing minerals ranked from 1 to 10 by hardness, with examples like diamond, corundum, quartz, and talc, and common objects like fingernail, copper coin, knife, and drill bit for comparison.