Erythrite from Calaveras County, California, USA
USA | |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Rocks & Minerals 82 (2007): 402-407. 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: 179, 340 Hess, Frank L. (1927), Rare metals – cobalt: Mineral Resources U.S., 1924, part 1: 451 Logan, Clarence August (1924), Sacramento field division: California Mining Bureau. Report 20: 4 Van Nostrand Reinholt Press: 78 |
| Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. Hess, Frank L. (1927), Rare metals – cobalt: Mineral Resources U.S., 1924, part 1: 451 Van Nostrand Reinholt Press: 75. |