mohs hardness of iron ore - courage-epreuve.be


Hematite: A primary ore of iron and a pigment mineral. iron ore. Oolites are tiny round spheres of chemically precipitated hematite. The specimen ... earthy Diaphaneity Opaque Cleavage None Mohs Hardness 5 to 6.5 Specific Gravity 5.0 ...
Read More