Mine detail: Hardesty Homestead

Previously called ''

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Location

Lat / long:

43.91913, -103.46278

Resource(B)

Primary:	Beryllium, Mica, Tantalum, Feldspar
Secondary:	Tin
Tertiary:	Lithium
Ore:	Albite, Amblygonite, Beryl, Cassiterite, Muscovite, Spodumene, Tantalite
Gangue:	Graphite, Quartz, Rhodochrosite, Topaz
Orebody form:	IRREGULAR

Production

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

Geology

Host rock:	Schist
Host type:	Schist
Associated rock:	Pegmatite
Associated type:	Pegmatite
Alteration processes:	Spodumene Altered To Sericite. Amblygonite Is Altered.

References

MRDS	D004781
DEP	10101556
Reference	{Deposit:: U. S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707}{Deposit:: ROBERTS, W.L., AND RAPP, GEORGE, 1965, MINERALOGY OF THE BLACK HILLS, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY BULLETIN 18}{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.