| Author: | Wartman, Frank S. | 
|---|---|
| Additional Authors: | Oldright, G. L. | 
| Year: | 1931 | 
| Document Type: | BMRA | 
| Issuing Agency: | United States Bureau of Mines, | 
| SUDOC: | C 22.12:3072 | 
| Series: | Report of investigations / United States Department of the Interior, Bureau of Mines ; | 
| Report Number: | 3072 | 
| Subjects: | Sulfides | 
| Magnetite | |
| Link: | https://hdl.handle.net/2027/mdp.39015077567025 |