| Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. American Mineralogist: (1983) 68: 245-254 Czamanske, Gerald K., Leonard, B. F., Clark, Joan R. (1980) Erdite, a new hydrated sodium iron sulfide mineral. American Mineralogist, 65 (5-6) 509-515 Konnert, Judith A., Evans, H. T. (1980) The crystal structure of erdite, NaFeS2·2H2O. American Mineralogist, 65 (5-6) 516-521 Van Nostrand Reinholt Press: 67 www.koeln.netsurf.de/~w.steffens/usa.htm. |
Coyote Peak, Coastal Range, Humboldt County, California, USA