Hematite: A primary ore of iron and a pigment mineral - GeologyHematite is the most important ore of iron and it has been used by people as a pigment for . The color variations are a result of the type of hematite used and the.hamatite iron ore variations,Types of Iron Ore: Hematite vs. Magnetite | Investing News NetworkSep 5, 2013 . Iron ore is most often found in the form of hematite and magnetite. Learn what makes those types of iron ore different.
hamatite iron ore variations