Skala Mohs Kekerasan Mineral

Kekerasan Mohs              Mineral                Formula kimia            Kekerasan absolute               

           1                         Talek/Talc             Mg₃Si₄O₁₀(OH)₂                         1                    

           2                          Gipsum                  CaSO₄·2H₂O                              3                     

           3                            Kalsit                      CaCO₃                                     9                      

           4                            Fluorit                       CaF₂                                     21                      

           5                             Apatit              Ca₅(PO₄)₃(OH^–,Cl^–,F^–)                 48                     

           6                  Feldspar Ortoklas              KAlSi₃O₈                              72                     

           7                              Kuarsa                      SiO₂                                   100                    

           8                              Topaz                Al₂SiO₄(OH^–,F^–)₂                     200                     

           9                          Korundum                    Al₂O₃                                400                      

          10                     Intan/Diamond                    C                                  1600