Mine detail: Triangle A Lode

Previously called ''

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Location

Lat / long:

43.7069, -103.49806

Resource(N)

Primary:	Feldspar
Ore:	Feldspar
Gangue:	Quartz, Tourmaline
Orebody form:	IRREGULAR DIKE

Production

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

Geology

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

References

MRDS	D008137
DEP	10012487
Reference	{Deposit:: U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707}{Production:: USBM INFO CIRC 7707.}
Reporter	Barari, Rachel A.