MARK A. SCHNEIDER / SCIENCE PHOTO LIBRARY MARK A. SCHNEIDER / SCIENCE PHOTO LIBRARY
Malachite with dioptase from the Tsumeb Mine in Tsumeb, Namibia. The little green crystals are the dioptase, on a matrix of malachite. Both dioptase and malachite are used as gemstones; malachite is also used as an ore of copper.
Model release not required. Property release not required.