Mine detail: Pinchbeck No. 1 Mine

Previously called 'Pinchback Property Mine 63Pitchbeck No 1 Mine'

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Location

Lat / long:

37.39062, -77.96304

Resource(B)

Primary:	Mica
Secondary:	Feldspar, Kaolin, Beryllium, Tantalum, Niobium (Columbium)
Ore:	Beryl, Kaolin, Muscovite, Plagioclase
Gangue:	Biotite, Quartz
Orebody form:	LINEAR
Discovery year:	1890

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1890

Geology

Host rock:	Biotite Gneiss-Chopawamsic Formation
Host type:	Gneiss
Structure:	Ne-Sw Trend, Faults
Tectonic:	Piedmont

References

MRDS	W031178
DEP	10080103
Reference	{Analytical Data:: SRC.REF: PEGAU (1932)}{Deposit:: 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. 103-139}{Deposit:: BROWN, W.R., 1962, MICA AND FELDSPAR DEPOSITS OF VIRGINIA: VIRGINIA DIVISION OF MINERAL RESOURCES, MINERAL RESOURCES REPORT 3, 195 P.}{Deposit:: PEGAU, A.A., 1932, PEGMATITE DEPOSITS OF VIRGINIA: VIRGINIA GEOLOGICAL SURVEY BULLETIN 33, 123 P.}{Deposit:: STERRETT, D.B., 1923, MICA DEPOSITS OF THE UNITED STATES: U.S. GEOLOGICAL SURVEY BULLETIN 740, PP. 307-330.}{Deposit:: 1890 DIREXPL ? - OPENED MINE, DUG OPEN CUT}{Deposit:: 1916? DIREXPL RICHMOND MICA CO. - DEEPENED OPEN CUT, MINED}{Production:: BROWN (1962) AND LEMKE, ETAL (1952)}
Reporter	Trimble, David C. (Sweet, Palmer C.)