| Stolburg, Craig S. (1984) The Mines and Minerals of Darwin, California. The Mineralogical Record, 15 (1) 5-18 Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. Hall, Wayne Everett & Edward M. Mackevett (1963), Geology and ore deposits of the Darwin quadrangle, Inyo County, California: USGS PP 368: 59 Van Nostrand Reinholt Press: 76 |