Description
E.C. Harris & V. T. Leaver
Commodities
PrimaryMica, Beryllium
SecondaryTantalum
Commodity typeB
Deposit
Deposit sizeS
Ore controlMica Wall Zone
Geology
Host rockPegmatite
Associated rockPegmatite · Pegmatite
Economic & production
Development statusPast Producer
Discovery year1941
Identification
Deposit ID10104248
MRDS IDSD02258
RegionNA
Data scoreB
Coordinates43.9019, -103.45695
References
U. S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 770U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707