Malachite from selected localities.
USA | |
| Minerals of the Ground Hog Mine Grant County Ron Gibbs Rocks & Minerals 67:5 pp 294-297 U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| Am Min 38:191-196; Rocks & Minerals 84:492-500 U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |