Mine detail: Ponca Group

Previously called ''

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Location

Lat / long: 43.8769, -103.37112

Resource(B)

Primary: Feldspar, Mica, Beryllium
Ore: Beryl, Microcline, Muscovite
Gangue: Quartz, Tourmaline
Orebody form: DIKE
Discovery year: 1898

Production

Operation type: Unknown
Production size: Small
Development status: Past Producer

Geology

Host type:Pegmatite
Associated rock:Pegmatite
Associated type:Pegmatite

References

MRDSSD02243
DEP10055639
Reference{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}
ReporterBarari, Rachel A.