ASTRID & HANNS-FRIEDER MICHLER / SCIENCE PHOTO LIBRARY ASTRID & HANNS-FRIEDER MICHLER / SCIENCE PHOTO LIBRARY
Water pipe. Limescale (white) deposited on the inside of a cast-iron drinking water pipe. Limescale is a deposit of calcium carbonate (CaCO3) which has precipitated out of the water. Cast-iron is an alloy of iron, carbon and silicon.
Model release not required. Property release not required.