Commodities
PrimaryFeldspar, Mica, Beryllium, Lithium
SecondaryNiobium (Columbium), Tantalum
Commodity typeB
Deposit
Deposit sizeS
Orebody formOVAL
Materials
Ore mineralsAmblygonite, Beryl, Muscovite, Spodumene
GangueApatite, Cassiterite, Cleavelandite, Fluorite, Halloysite, Lepidolite, Montmorillonite, Quartz
Other materialsAlbite
Geology
Host rockPegmatite
Associated rockPegmatite · Pegmatite
Economic & production
Development statusPast Producer
First production1923
Identification
Deposit ID10055680
MRDS IDSD02292
Alternate namesSarah Group
RegionNA
Data scoreB
Coordinates43.88218, -103.42278
References
U. S. BUREAU OF MINES, 1955, 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. GEOLOGICAL SURVEY, U.S. BUREAU OF RECLAMATION, AND SOUTH DAKOTA GEOLOGICAL SURVEY, 1975, MINERAL AND WATER RESOURCES OF SOUTH DAKOTA, SOUTH GEOLOGICAL SURVEY BULLETIN 16BIENIEWSKI, C.L., AND AGNEW, A.F., 1964, THE MINERAL INDUSTRY OF SOUTH DAKOTA IN 1962, SOUTH DAKOTA GEOLOGICAL SURVEY MINERALS REPORT 10 / BIENIEWSKI, C. L., AND MCGREGOR, DUNCAN J., 1965, THE MINERAL INDUSTRY OF SOUTH IN 1963, SOUTH DAKOTA GEOLOGICAL SURVEY MINERALS REPORT 11U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707 / BIENIEWSKI,C.L., AND AGNEW, A.F., 1964, THE MINERAL INDUSTRY OF SOUTH DAKOTA IN 1962. SOUTH DAKOTA GEOLOGICAL SURVEY MINERALS REPORT 10/ BIENIEWSKI, C.L., AND MCGREGOR, D.J., 1965, THE MINERAL INDUSTRY OF SOUTH DAKOTA IN 1963, SOUTH DAKOTA GEOLOGICAL SURVEY MINERALS REPORT 11