Dobie and Ross Buchanan mine

Mica Mine in Mitchell county, North Carolina

Dobie and Russ Buchanan mine

Principal periods worked Pre-WWII
Workings Large pit 80 deep?, 2 pits, shaft 30.
Production Feldspar
Shape Tabular (?)
Size >600 L
Strike NE
Dip SE
Relation to wallrock Concordant
Wallrock Hornblende gneiss
Remarks Pl-P-Q pegmatite, medium grained; accessory muscovite, garnet.
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