Chet Green mine

Mica Mine in Mitchell county, North Carolina

Chet Green mine

Principal periods worked WWII
Workings Cut 90
Description of muscovite Light brown, hard, reeved, tied, ruled, small.
Shape Tabular (?)
Size 8 T
Strike NW
Dip SW
Relation to wallrock Concordant
Wallrock Biotite gneiss
Extent of weathering Weathered
Remarks Kaolinized Pl-Q-M pegmatite, poorly exposed.
Source of information USGS

Geographic context


Principal periods worked
WWI World War I
WWII World War II
int intermittent
Small < 500 lb
Moderate 500-10,000 lb
Large > 10,000 lb
Size of pegmatite
D depth
L length
T thickness
avg average
Internal structure
B biotite
F feldspar
M muscovite
P perthite
Pl plagioclase
Q quartz
Source information
CMC Colonial Mica Corporation
DMEA Defense Minerals Exploration Administration
OME Office of Minerals Exploration
USGS U.S. Geological Survey
OF USGS open-file reports and maps