| Author: | Hickman, Robert C. |
|---|---|
| Year: | 1947 |
| Document Type: | BMRA |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| Series: | Report of investigations / United States. Bureau of Mines ; |
| Report Number: | 4118 |
| Subjects: | Mining geology |
| Sillimanite | |
| Link: | https://hdl.handle.net/2027/mdp.39015078490706 |