Densities of Ore-Bearing Rocks

Rock Type	Density Range (g/cm \(\!^3\))
Ore-Bearing Rocks
Bauxite	2.30 - 2.55
Pyrite and Pyrrhotite	4.50 - 5.20
Magnetite	4.90 - 5.20
Hematite	4.90 - 5.30
Cobaltite	5.80 - 6.30
Galena (Lead-Sulphide)	7.40 - 7.60