Mine detail: Wilhelm Mine

Previously called ''

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Location

Lat / long:

43.8244, -103.65807

Resource(B)

Primary:	Feldspar, Lithium, Mica, Tantalum
Secondary:	Beryllium
Ore:	Amblygonite, Beryl, Feldspar, Muscovite
Gangue:	Quartz
Orebody form:	KNOB

Production

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

Geology

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

References

MRDS	D004749
DEP	10101549
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}
Reporter	Barari, Rachel A.