Commodities
PrimaryTalc-Soapstone
Commodity typeN
Deposit
Model154: Epithermal quartz-alunite Au
Deposit sizeM
WorkingsSurface
Orebody formLENTICULAR, PIPELIKE
Materials
Ore mineralsAndalusite, Pyrophyllite, Topaz
GangueChloritoid, Quartz, Sericite
Geology
Host rockSchist
StructureMetamorphic Cleavage N 50 E, Dipping 60-70 Nw.
AlterationSericitic, Silicic, Pyrophyllitic
Economic & production
Development statusPast Producer
First production1930
Last production1965
Identification
Deposit ID10069803
MRDS IDW007494
Alternate namesGerhardt Mine
RegionNA
Data scoreB
Coordinates35.80009, -79.59977
References
STUCKEY, J. L., 1928, THE PYROPHYLLITE DEPOSITS OF NORTH CAROLINA: NORTH CAROLINA GEOL. SURV. BULL. 37.BURGESS, B. C. 1936, PYROPHYLLITE, A NEW DEVELOPMENT - THE GERHARDT DEPOSIT: AM. CERAMIC SOC. BULL., V. 15, P. 299 - 302.ESPENSHADE, G. H., APR. 15, 1953: MAY 27, 1958, UNPUBLISHED FILE REPORT. STUCKEY, J.L., 1967, PYROPHYLLITE DEPOSITS IN NORTH CAROLINA: N.C. GEOLOGICAL SURVEY BULLETIN 80.STUCKEY, 1967, PYROPHYLLITE IN NORTH CAROLINA: NC GEOLOGICAL SURVEY BULLETIN 80, P. 28.