Covellite from Mariposa County, California, USA
USA | |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. Wiebelt, F.J., Sanborn, W.C., Trengrove, R.R., and Ricker, A.S. (1951) Investigaton of West Belt copper-zinc mines, El Dorado, Amador, Calaveras, and Mariposa counties. U.S. Bureau of Mines Report of Investigation 4760, 62 pp.: 16 Van Nostrand Reinholt Press: 99. |
Alfredo Petrov - field observations, 5-2014 |
Unnamed Au prospect [15], Quartzburg, Hornitos Mining District, West Belt, Mariposa County, California, USA