Specularite from Klamath Mountains, Shasta County, California, USA
USA | |
| Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. Kinkel, Arthur R. , Albers, John P. (1951) Geology of the massive sulfide deposits at Iron Mountain, Shasta County, California. Special Report 14. California Division of Mines Van Nostrand Reinholt Press: 162. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |