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Happy Hill mine

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Mica Mine in Mitchell county, North Carolina, this site also known as Jeff Burleson

Happy Hill (Jeff Burleson) mine

Principal periods worked 1895, 1910, 1930, WWII.
Workings 6 cuts, 4 adits in area 100 by 250.
Description of muscovite Green, hard, ruled, stained
Production Moderate sheet, scrap.
Shape Ellipsoidal
Size 7-15 T
Strike NE
Dip SE
Plunge NE
Relation to wallrock Partly concordant
Wallrock Biotite gneiss
Remarks Pl-Q-M pegmatite, medium grained; accessory garnet, sericite.
Source of information USGS

Geographic context

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Geologic map unit -82.062767602, 36.043243449
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