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

Clear mine (probably near Howard Smith mine)

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

Clear mine (probably near Howard Smith mine.)

Principal periods worked Pre-WWII
Workings Several caved adits and pits.
Description of muscovite Light green, "A" structure
Shape Pinch and swell.
Size 0.1-1.5 T
Strike NE
Dip NW
Relation to wallrock Concordant
Wallrock Hornblende gneiss
Remarks Q-F-M pegmatite.
Source of information USGS

Geographic context

(click for info)
Geologic map unit -81.985962507, 36.002334355
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