Mine detail: Custer Mica Lodes Nos. 1 and 2

Previously called ''

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Location

Lat / long:

43.49052, -103.57417

Resource(N)

Primary:	Mica
Ore:	Muscovite
Gangue:	Albite, Quartz
Discovery year:	1943

Production

Operation type:	Unknown
Production size:	None
Development status:	Occurrence

Geology

Host type:	Pegmatite
Associated type:	Pegmatite
Tectonic:	Southern Black Hills
Alteration processes:	Slightly Air-Stained

References

MRDS	D007190
DEP	10011974
Reference	U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707
Reporter	Barari, Rachel A.