Mohs hardness 5 rocks & minerals
Mohs hardness 5 is apatite — about as hard as a steel knife. Many phosphates and some silicates sit here.
Showing 1441–1444 of 1444 rocks (page 13 of 13).
Mohs hardness 5 is apatite — about as hard as a steel knife. Many phosphates and some silicates sit here.
Showing 1441–1444 of 1444 rocks (page 13 of 13).