Gold from selected localities.
USA | |
| Metal Mining Mining Geol.(1937)A.I.M.E.:432. |
Geology and Mining Industry of Leadville, Samuel F. Emmons, 1886 | |
[var: Electrum] Raabe, K. C. & Sack, R. O. (1984): Growth zoning in tetrahedrite-tennantite from the Hock Hocking mine, Alma, Colorado. Canadian Mineralogist 22, 577-582. | |
| Metal Mining Mining Geol., A.I.M.E. (1937): 432. |
Metal Mining Mining Geol., A.I.M.E. (1937): 432. | |
Metal Mining Mining Geol., A.I.M.E. (1937): 432. | |
Metal Mining Mining Geol., A.I.M.E. (1937): 432. | |
Metal Mining Mining Geology, A.I.M.E. (1937): 432, 437. |
Phillips Mine, Alma, Alma Mining District, Park County, Colorado, USA