| Lat / long: | 42.57275, -107.88539 |
| Primary: | Corundum |
| Secondary: | Semiprecious Gemstone |
| Operation type: | Unknown |
| Development status: | Occurrence |
| MAS | 560131144 |
| DEP | 10278851 |
| Reference | {Deposit:: ALSO LOCATED IN SEC 13 T30N R93W, TWO LEDGES OF MICA SCHIST}{Deposit:: CONTAIN PALE RED CORUNDUM CRYSTALS NO GEMS}{Deposit:: BLACK NEPHRITE CROPS OUT ERRATICALLY FOR ABOUT 700 FT}{Deposit:: SURROUNDING ROCK INCLUDE NARROW OUTCROPS OF ANTHOPHYLLITE.}{Deposit:: TREMOLITE,ACTINOLITE & SERPENTINE.}{Deposit:: WYO GEOL SURV BULL 50 1966 P65, P 138} |
| Reporter | South Dakota School of Mines |