Water-based stains, being iron oxide pigment, have a much wider variety of color selection possibilities. Although they’re versatile, [water-based stains] can be finicky, because surface ...

Iron oxides stain the snout of the Taylor Glacier, McMurdo Dry Valleys, Antarctica, forming a feature commonly referred to as Blood Falls. The iron originates from ancient subglacial brine that ...

These vegetables are full of oxalic acid, which reacts with and dissolves iron oxide (aka rust) and tough food stains. And if you only have a sweet potato lying around, that's even better.