Orthoclase from selected localities.
USA | |
| MinRec 15:5 |
| Knopf, Adolf (1914a), The Darwin silver-lead mining district, California: USGS Bulletin 580: 1-18 |
Margerum, W. (2004) The Darwin Tungsten Area Part II: Mines and Mineralogy in the Bulletin of the Mineralogical Society of Southern California Vol. 74(5). | |
Dunning, Gail E., Yves MoÎlo, and Joseph F. Cooper, Jr. (2000), Ag-Cu-Pb-Bi Sulfosalts New to Darwin, Inyo County, California; Mineral News: 16(9): 1. | |
| California Journal of Mines and Geology (1938) Vol. 34 |