Pyrite from Pala, Pala Mining District, San Diego County, California, USA
USA | |
| King, Van (n.d.) Personal communcation. |
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. |