1. Mineral Resources
  2. Online Spatial Data
  3. Mica deposits of the Blue Ridge in North Carolina

Raven Cliff mine

Map
XML
JSON
KML
Mica Mine in Avery county, North Carolina

Raven Cliff mine

Principal periods worked WWII
Workings 3 adits 20-50, 3 small cuts
Description of muscovite Green, small
Production Small sheet
Shape Lenses
Size 0-4 T
Strike NW
Dip SW
Relation to wallrock Concordant
Wallrock Mica gneiss
Extent of weathering Unweathered
Remarks Pl-Q-M pegmatite, fine to medium grained.
Source of information USGS, CMC

Geographic context

(click for info)
Geologic map unit -81.994038006, 36.000745732
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