Hematite: A primary ore of iron and a pigment mineral
What is Hematite? Hematite is one of the most abundant minerals on Earth's surface and in the shallow crust. It is an iron oxide with a chemical composition of Fe 2 O 3.It is a common rock-forming mineral found in sedimentary, metamorphic, and igneous rocks at locations throughout the world.. Hematite is the most important ore of iron.Although it was once mined at thousands of locations around ...