| Author: | Faust, George T. |
|---|---|
| Additional Authors: | Gabriel, Alton. |
| Year: | 1940 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.27:7129 |
| Series: | Information Circular / Bureau of Mines ; |
| Report Number: | 7129 |
| Subjects: | Petrology |
| Nonmetallic materials | |
| Link: | https://hdl.handle.net/2027/mdp.39015078534354 |