Finding black streaks or splotches in the sand while walking along a Michigan beach may have you wondering if you've stumbled across some sort of pollution, but it's actually a completely natural ...

Knowing about the different types of iron ore is useful for investors interested in the space. Iron, a key material in steel and other applications, is most often found in hematite and magnetite ores, ...

Like the Marvel comic book hero, we are all iron men and women. Iron composes the heme of hemoglobin, the red pigment in our blood. It's stored in ferritin, a protein ubiquitous in almost all living ...