| References: | Sampson, Reid J. & W. Burling Tucker (1942), Mineral resources of Imperial County: California Journal of Mines and Geology, California Mining Bureau. (Report 38): 127-128; Morton, P.K. (1977) Mines and mineral resources of Imperial County, California. California Division of Mines and Geology County Report 7, 104 pp.: 92-93; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 193-194. |