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Boise Slick mine

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Mica Mine in Mitchell county, North Carolina

Boise Slick mine

Principal periods worked WWII
Workings Cut 45
Description of muscovite Light brown, reeved, locky, small
Shape Tabular
Strike NE
Dip SE
Relation to wallrock Concordant
Wallrock Mica gneiss
Remarks Pl-Q-M pegmatite, fine to medium grained; accessory, sericite, garnet.
Source of information USGS

Geographic context

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Geologic map unit -82.062417459, 36.01198568
Nearby scientific data Find additional scientific data near this location

Abbreviations

Principal periods worked
WWI World War I
WWII World War II
int intermittent
Production
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