Commodities
PrimaryMica, Feldspar
Commodity typeN
Deposit
Deposit sizeS
Orebody formDIKE
Materials
Ore mineralsMuscovite, Plagioclase
GangueQuartz
Geology
Host rockGranite
Associated rockPegmatite · Harney Peak Granite;Pegmatite
AlterationMica Is Air Stained And Clouded By Inclusions
Economic & production
Development statusPast Producer
Identification
Deposit ID10010782
MRDS IDD004751
RegionNA
Data scoreC
Coordinates43.86524, -103.56
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 18