Mine detail: Lucky Twist Mine

Previously called 'Sutherland Mine'

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Location

Lat / long: 43.67385, -103.59

Resource(B)

Primary: Feldspar, Mica
Secondary: Beryllium
Ore: Beryl, Feldspar, Muscovite
Gangue: Quartz, Tourmaline
Orebody form: DIKE

Production

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

Geology

Host type:Pegmatite
Associated type:Pegmatite
Tectonic:Southern Black Hills

References

MRDSD007202
DEP10011982
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.