Mine detail: Sunshine Mica Prospect

Previously called ''

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Location

Lat / long:

43.78524, -103.6025

Resource(B)

Primary:	Mica, Feldspar
Secondary:	Beryllium
Ore:	Albite, Beryl, Biotite, Microcline, Muscovite
Gangue:	Quartz

Production

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

Geology

Host type:	Pegmatite
Associated rock:	Pegmatite
Associated type:	Pegmatite
Alteration processes:	Mica Is Air-Stained, Mineral-Stained And Badly Reeved.

References

MRDS	D004762
DEP	10101552
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.