Mine detail: Formoso

Previously called ''

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Location

Lat / long:

43.8419, -103.45862

Resource(N)

Primary:	Mica
Ore:	Mica
Orebody form:	NARROW DIKES

Production

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

Geology

Host type:	Pegmatite
Associated rock:	Pegmatitic Granite;Pegmatite
Associated type:	Pegmatite
Structure:	Cut By Pegmatite Dikes

References

MRDS	D004764
DEP	10010790
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.