NATURAL HISTORY MUSEUM, LONDON / SCIENCE PHOTO LIBRARY NATURAL HISTORY MUSEUM, LONDON / SCIENCE PHOTO LIBRARY
Wood tin. Dark-brown banded aggregates of cassiterite, a variety of cassiterite, intergrown with quartz (white) and tourmaline (black). Cassiterite is a tin oxide and important ore of tin. Polished specimen is from West Kitty mine, St. Agnes, Cornwall, UK.
Model release not required. Property release not available.