How were Earth's solid deposits of iron ore created? One researchers suggests that, billions of years ago, "green rust" formed in seawater and sank to the ocean bed, becoming an original source of ...

The fur around the cone worn by the dog turned into a light shade of green The dog's saliva, which contains iron porphyrins, had something to do with it Instead of the usual red rust, "green rust" ...

Though they may seem rock solid, the ancient sedimentary rocks called iron formations - the world's chief economic source of iron ore - were once dissolved in seawater. How did that iron go from a ...