Mine detail: Hofert Arcade

Previously called 'Victory No. 1 Prospect'

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Location

Lat / long:

43.79357, -103.53278

Resource(N)

Primary:	Mica
Ore:	Muscovite
Gangue:	Biotite, Garnet, Microcline, Oligoclase, Quartz, Sillimanite, Tourmaline
Orebody form:	IRREGULAR, BRANCHING

Production

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

Geology

Host rock:	Schist
Host type:	Schist
Associated rock:	Pegmatite
Associated type:	Pegmatite

References

MRDS	SD02309
DEP	10104259
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.