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Mine detail: Knowles Lode Claim
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North America
United States
South Dakota
Custer
Previously called ''
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Location
Lat / long:
43.78524, -103.59389
Resource(B)
Primary:
Quartz, Mica, Beryllium
Ore:
Beryl, Muscovite, Quartz
Gangue:
Biotite, Garnet, Plagioclase, Tourmaline
Orebody form:
LENTICULAR
Production
Operation type:
Unknown
Production size:
None
Development status:
Occurrence
Geology
Host type:
Pegmatite
Associated rock:
Pegmatite
Associated type:
Pegmatite
References
MRDS
SD02284
DEP
10055673
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.