| Author: | Evans, Howard T. |
|---|---|
| Additional Authors: | Mrose, Mary E. |
| Year: | 1957 |
| Document Type: | MAIN |
| Issuing Agency: | U.S. Dept. of the Interior, Geological Survey, |
| Series: | Trace elements investigations report, |
| Report Number: | 684 |
| Subjects: | Vanadium ores |
| Duttonite | |
| Doloresite | |
| Häggite | |
| Link: | https://hdl.handle.net/2027/mdp.39015095013820 |