Silver from Del Norte County, California, USA
USA | |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 157, 338, 363 Crawford, James John (1896), Thirteenth report of the State Mineralogist: California Mining Bureau. Report 13: 58 Van Nostrand Reinholt Press: 46, 133. |