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Ledford prospect

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Mica Prospect in Mitchell county, North Carolina

Ledford prospect

Principal periods worked 1956
Workings Cut 150
Description of muscovite Ruby, biotite intergrowths, stained, haircracks.
Production Small sheet
Shape Lenses
Size 1-2 T, 2-20 L
Strike NE
Dip NW
Relation to wallrock Concordant
Wallrock Mica gneiss
Extent of weathering Weathered
Remarks Pl-Q-M pegmatite; accessory biotite.
Source of information USGS

Geographic context

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Geologic map unit -82.093487271, 36.065119044
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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