| Lat / long: | 43.72052, -103.60139 |
| Primary: | Mica |
| Secondary: | Beryllium, Feldspar |
| Ore: | Beryl, Feldspar, Muscovite |
| Gangue: | Albite, Quartz |
| Orebody form: | KNOBLIKE AND LENTICULAR |
| Discovery year: | 1935 |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Past Producer |
| First production started: | 1936 |
| Host type: | Mica Schist |
| Associated type: | Gneiss,Pegmatite |
| MRDS | D008106 |
| DEP | 10012463 |
| Reference | {Deposit:: U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707.}{Deposit:: USGS PP 247, P. 212-214.}{Production:: USGS PP 247, P. 214.} |
| Reporter | Barari, Rachel A. |