Chalcocite from selected localities.
USA | |
| Jahns, R. H. and Wright, L.A. (1951), Gem and Lithium-bearing pegmatites of the Pala District, San Diego County, California. California Division of Mines special report 7A: 72 p.: 41; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 98. |
Jahns, Richard Henry & Wright, Lauren A. (1951), Gem and lithium-bearing pegmatites of the Pala district, San Diego County, California. California Division of Mines Special Report 7-A: p. 31. |