Mine detail: Ok No. 4 Lode

Previously called ''

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Location

Lat / long:

43.8019, -103.53667

Resource(N)

Primary:	Feldspar, Mica
Ore:	Mica
Gangue:	Quartz

Production

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

Geology

Host type:	Granite
Associated rock:	Pegmatite Granite;Pegmatite
Associated type:	Pegmatite
Alteration processes:	Minerals Are Iron Stained

References

MRDS	SD02324
DEP	10055704
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.