Hübnerite from Signal Hill, Piute Range [N], Signal Mining District (Vontrigger Mining District), San Bernardino County, California, USA
USA | |
| Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 374, 386. Hess, Frank L. (1917), Tungsten minerals and deposits: USGS Bulletin 652, 85 pp.: 57 Hess, Frank L. (1909), Tungsten, nickel, cobalt, etc.: Mineral Resources U.S., 1908: 724 |
(2005) Mineral Resources Data System (MRDS), US Geological Survey. |