Mineral Hardness > Isometric > Flashcards
Pyrite
6-6.5
Spinel
7.5-8
Magnetite
5.5-6.5
Garnet
6.5-7.5
Halite
2.5
Chromite
5.5
Sylvite
Fluorite
4
Galena
Sphalerite
3.5-4
Periclase