Hardness Iron Ore Mohs Scale

Magnetite hardness html jbcustomguitarsnln the mohs hardness scale hematite rates 512 to 612 its color can vary from a black steel color to a brownish red natural hematite normally does not have enough magnetism to measure natural hematite is rare and expensive to mine natural hematite is the nonmagnetic relative of magnetite 247.

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