Little Elk Ridge mine

Mica Mine in Avery county, North Carolina

Little Elk Ridge mine

Principal periods worked 1926, 1928, 1931, 1943.
Workings Cut, adit 30, prospect pits
Description of muscovite Light brown, hard, moderate cracking, ruling, staining.
Production Moderate sheet
Shape Tabular
Size 4 T >80 L
Strike NE
Dip SE
Relation to wallrock Concordant
Wallrock Hornblende gneiss
Remarks Pl-Q-M pegmatite, fine to medium grained; accessory garnet, sericite, biotite.
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