Bertrandite 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: 31. |
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: 31; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 102. | |
| 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: 31, 38. |