Commodities
PrimaryMica
SecondaryFeldspar, Kaolin, Beryllium, Tantalum, Niobium (Columbium)
Commodity typeB
Deposit
Deposit sizeS
Orebody formLINEAR
Ore controlPegmatite Dike
Materials
Ore mineralsBeryl, Kaolin, Muscovite, Plagioclase
GangueBiotite, Quartz
Geology
Host rockGneiss · Biotite Gneiss-Chopawamsic Formation
StructureNe-Sw Trend, Faults
Tectonic settingPiedmont
Economic & production
Development statusPast Producer
First production1890
Discovery year1890
Identification
Deposit ID10080103
MRDS IDW031178
Alternate namesPinchback Property Mine 63, Pitchbeck No 1 Mine
RegionNA
Data scoreB
Coordinates37.39062, -77.96304
References
SRC.REF: PEGAU (1932)LEMKE, JAHNS, AND GRIFFITTS, 1952, MICA DEPOSITS OF THE SOUTHEASTERN PIEDMONT, PART 2. AMELIA DISTRICT, VIRGINIA, U.S. GEOLOGICAL SURVEY PROF. PAPER 248-B, PP. 103-139BROWN, W.R., 1962, MICA AND FELDSPAR DEPOSITS OF VIRGINIA: VIRGINIA DIVISION OF MINERAL RESOURCES, MINERAL RESOURCES REPORT 3, 195 P.PEGAU, A.A., 1932, PEGMATITE DEPOSITS OF VIRGINIA: VIRGINIA GEOLOGICAL SURVEY BULLETIN 33, 123 P.STERRETT, D.B., 1923, MICA DEPOSITS OF THE UNITED STATES: U.S. GEOLOGICAL SURVEY BULLETIN 740, PP. 307-330.1890 DIREXPL ? - OPENED MINE, DUG OPEN CUT1916? DIREXPL RICHMOND MICA CO. - DEEPENED OPEN CUT, MINEDBROWN (1962) AND LEMKE, ETAL (1952)