Mine detail: Friday Lode

Previously called ''

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Location

Lat / long:

43.77774, -103.65085

Resource(B)

Primary:	Mica, Feldspar
Secondary:	Beryllium
Ore:	Beryl, Mica
Gangue:	Quartz, Tourmaline
Orebody form:	KNOB-SHAPED

Production

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

Geology

Host rock:	Schist
Host type:	Schist
Associated rock:	Granite;Pegmatite
Associated type:	Pegmatite
Alteration processes:	Feldspar Is Iron Stained

References

MRDS	D004766
DEP	10010792
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.