Ore controlInside The Wall Zone Is A Concentration Of Mica Books
Materials
Ore mineralsBeryl, Feldspar, Mica
GangueQuartz
Geology
Host rockPegmatite
Associated rockPegmatite
Economic & production
Development statusPast Producer
Identification
Deposit ID10012465
MRDS IDD008109
Alternate namesDuncan's Little Wonder
RegionNA
Data scoreB
Coordinates43.67996, -103.61945
References
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707.USGS PP 247, P. 221.USBM INFO CIRC 7707, P. 159.