Mine detail: Keystone Lode

Previously called ''

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Location

Lat / long:

43.7419, -103.70168

Resource(B)

Primary:	Mica, Beryllium, Lithium
Ore:	Amblygonite, Beryl, Muscovite
Gangue:	Albite, Hornblende, Microcline, Pyrrhotite, Quartz

Production

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

Geology

Host type:	Pegmatite
Associated type:	Pegmatite

References

MRDS	SD02513
DEP	10055768
Reference	{Deposit:: USGS PP 247, P. 141}{Deposit:: USBM INFO CIRC 7707, P. 120}{Deposit:: SDSMT BULL 18}
Reporter	Barari, Rachel A.