South Dakota · Custer County
Occurrence
Harball's Mine
Custer County, South Dakota, United States
Feldspar
⌖ Show on map
USGS source ↗
Commodities
Primary
Feldspar
Commodity type
N
Deposit
Deposit size
N
Workings
Surface
Orebody form
IRREGULAR
Materials
Ore minerals
Feldspar
Gangue
Quartz, Tourmaline
Geology
Host rock
Quartzite
Associated rock
Pegmatite
Tectonic setting
Southern Black Hills
Economic & production
Development status
Occurrence
Identification
Deposit ID
10055728
MRDS ID
SD02457
Alternate names
Happy No. 1, Happy No. 2
Region
NA
Data score
C
Coordinates
43.66468, -103.53667
References
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707