Cochise College          Photos of Minerals

                          Geology Home Page

                          Roger Weller, geology instructor

                          [email protected]
                                  copyright 2006-R.Weller

Shortcut
Minerals on Mohs Scale of Hardness

10-diamond  (hardest)
9-corundum
8-topaz
7-quartz
6-feldspar
5-apatite
4-fluorite
3-calcite
2-gypsum
1-talc   (softest)