Commodities
PrimaryMica
SecondaryTantalum
Commodity typeB
Deposit
Deposit sizeS
WorkingsSurface/Underground
Orebody formDIKE
Geology
Host rockSchist
Associated rockPegmatite
StructureFlat Fault 8 Feet Below Surface.
Tectonic settingSouthern Black Hills
Economic & production
Development statusPast Producer
Identification
Deposit ID10011958
MRDS IDD007165
Alternate namesThom Carroll Property
RegionNA
Data scoreB
Coordinates43.7719, -103.56223
References
U.S. BUREAU OF MINES, 1954, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707ROBERTS, W.L., AND RAPP, GEORGE, 1965, MINERALOGY OF THE BLACK HILLS, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY BULLETIN 18U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707