Analytical method: UNKNOWN
| Technique | UNKNOWN |
|---|---|
| Material | WHOLE ROCK |
| Mineral | none |
| Institution | USGS RESTON, BRANCH OF EASTERN MINERAL RESOURCES, RESTON, VA 22092, USA |
| Reference | Spencer, Arthur Coe; Hastings, John B; Stone, Ralph Walter; Clapp, Charles Horace (1917) The geology and ore deposits of Ely, Nevada. U. S. Geological Survey Professional Paper. 1917. |