| Location: | Pennington County, South Dakota, United States, North America |
| Lat / long: | 43.8769, -103.37112 |
| dep_id: | 10055639 |
| mrds_id: | SD02243 |
| Commodity type: | metallic and nonmetallic |
| Major mineral: | Feldspar, Mica, Beryllium |
| Operation type: | Unknown |
| Production size: | Small ammount of material produced |
| Development status: | Past Producer |
| ore: | Beryl, Microcline, Muscovite |
| gangue: | Quartz, Tourmaline |
| orebody_fm: | DIKE |
| work_type: | Surface/Underground |
| Reporter: | Barari, Rachel A. |
| hrock_type: | Pegmatite |
| arock_unit: | Pegmatite |
| arock_type: | Pegmatite |
| disc_yr: | 1898 |
| discr: | Frederick Gardner |
| References: |
- Deposit:: U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 770
- Production:: U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707
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