Corundum from selected localities.
USA | |
| U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
Rynerson, F. J. 1967. Exploring and Mining Gems & Gold in the West; Ch. 23, p. 151: Naturegraph Publishers, Inc., Happy Camp, California. |
Unnamed Corundum occurrences [2], Soboba Hot Springs, San Jacinto Mountains, Riverside County, California, USA