| Lat / long: | 43.83329, -103.54223 |
| Primary: | Mica, Feldspar |
| Ore: | Mica |
| Gangue: | Quartz |
| Orebody form: | DIKE |
| Operation type: | Unknown |
| Production size: | None |
| Development status: | Occurrence |
| Host type: | Pegmatite |
| Associated rock: | Pegmatite;Harney Peak Granite |
| Associated type: | Pegmatite,Granite |
| Alteration processes: | Mica Is Air Stained |
| MRDS | SD02251 |
| DEP | 10055646 |
| Reference | U. S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 770 |
| Reporter | Barari, Rachel A. |