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Middle Ridge Mica Mine

Past Producer in Mitchell county in North Carolina, United States with commodities Feldspar, Mica
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10025155
MRDS ID K000827
Record type Site
Current site name Middle Ridge Mica Mine
Related records 10199848

Geographic coordinates

Geographic coordinates: -82.10317, 36.06703 (WGS84)

Site location context

Political divisions (FIPS codes)

Mitchell(county)

North Carolina(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Carvers Gap(quadrangle 1:24,000 scale)

Johnson City(quadrangle 1:100,000 scale)

Johnson City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Nolichucky(hydrologic unit)

French Broad-Holston(hydrologic accounting unit)

Upper Tennessee(hydrologic subregion)

Tennessee(hydrologic region)

Federal lands

Pisgah National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Croatan National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

National Forests in North Carolina(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States North Carolina Mitchell

Comments on the location information

  • SEE PLATE 3, PROF. PAPER 577 FOR LOCATION

Commodities

Commodity Importance
Feldspar Primary
Mica Primary

Comments on the commodity information

  • MUSCOVITE-BROWN, BIOTITE INTERGROWTHS, STAINED

Materials information

Materials Type of material
Feldspar Ore
Muscovite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -82.10317, 36.06703
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Pegmatite Is Partly Concordant With Wall Rock Structure

Ore body information

  • General form TABULAR
    Strike NW
    Dip NE
    Thickness 2.13M

Comments on the geologic information

  • PERTHITE, PLAGIOCLASE, QUARTZ, BIOTITE MUSCOVITE PEGMATITE, MEDIUM TO COARSE GRAINED.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Significant No
Production years PRE 1942

Mining district

District name Spruce Pine District/Glen Ayre Area

Comments on the production information

  • LESS THAN 500 LBS OF SHEET MICA WAS PRODUCED.

Workings at the site

  • Type of workings Surface/Underground
    Overall length 9.14M

Comments on the workings information

  • CUT 30 FT LONG, ADITS

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1973 Fagan, James M. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site