HARDNESS DETERMINATION
- EXERCISES -

"THE MATERIAL THAT SCRATCHES ANOTHER IS THE HARDER OF THE TWO"



DO THE FOLLOWING EXERCISES IN ORDER:

    EXERCISE A - A SIMPLE HARDNESS SCALE
    EXERCISE B - THE MOHS SCALE OF HARDNESS
    EXERCISE C - THE HARDNESS OF NON-MOHS MINERALS

© 2010, David J. Leveson/Revised Michelle O'Dea