| Lat / long: | 48.43348, -115.40853 |
| Primary: | Vermiculite |
| Tertiary: | Feldspar |
| Gangue: | Biotite, Pyroxene |
| Orebody form: | ROUGHLY CYLINDRICAL |
| Discovery year: | 1915 |
| Operation type: | Unknown |
| Production size: | Yes |
| Development status: | Producer |
| First production started: | 1925 |
| Host rock: | Wallace Formation |
| Host type: | Pyroxenite |
| Structure: | Northwest Trending Faults And Folds In Rocks Of Belt Supergroup, Northwest Trending Syncline In Wallace Fm. Of Belt Supergroup. |
| Alteration processes: | Biotite To Vermiculite |
| MRDS | W013395 |
| DEP | 10070453 |
| Reference | {Deposit:: BOETTCHER, A. L., 1967, THE RAINY CREEK ALKALINE ULTRAMAFIC IGNEOUS COMPLEX NEAR LIBBY, MONTANA, JOUR. GEOLOGY, V. 75, NO. 5, P. 526 - 553.}{Deposit:: JOHNS, W. M., 1970, GEOLOGY AND MINERAL DEPOSITS OF LINCOLN AND FLATHEAD COUNTIES; MONT. BUR. OF MINES AND GEOL. BULL. 79, P. 146 - 149.}{Production:: BUSCH, A. L. (IN PRESS), VERMICULITE IN THE UNITED STATES: IN PROCEEDINGS} |
| Reporter | Berg, Richard B. (Krohn, D. H.) |