Chalcopyrite from Signal Mining District (Vontrigger Mining District), San Bernardino County, California, USA
USA | |
| Paul M. Adams (2003) Micromineralogy of the Leiser Ray Mine, San Bernardino County, California. Mineral News, 19, #6. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
Leiser Ray Mine, Signal Hill, Piute Range [N], Signal Mining District, San Bernardino County, California, USA