|
USA | |
- Bradshaw Mountains (Bradshaw Range)
| Lindgren, W. (1926), USGS Bull. 782: 143-145. |
| A.I.M.E. Ore Deposits of the Western States (1933): 511. |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. U.S. Geological Survey Professional Paper 829 |
| Am Min 50:1179-1212 |
| USGS Prof Paper 649 |
- Willow Creek Mining District
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
- Evergreen Mining District (Malachite Mining District)
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. USGS Prof Paper 223 |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Pabian, Roger K. (1971) The Minerals and Gemstones of Nebraska. Educational Circular 2. University of Nebraska - Conservation and Survey Divsion |
| Pabian, Roger K. (1971) The Minerals and Gemstones of Nebraska. Educational Circular 2. University of Nebraska - Conservation and Survey Divsion |
| 5th International Platinum Symposium Bulletin of The Geological Society of Finland Number 61, Part 1,1989,1-64 |
| Rocks & Minerals 76:383 |