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Justus Mica Mine

Past Producer in Avery county in North Carolina, United States with commodity 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. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10025177
MRDS ID K000852
Record type Site
Current site name Justus Mica Mine
Related records 10150775, 10296906

Geographic coordinates

Geographic coordinates: -81.99983, 35.99148 (WGS84)

Site location context

Political divisions (FIPS codes)

Avery(county)

North Carolina(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Linville Falls(quadrangle 1:24,000 scale)

Hickory(quadrangle 1:100,000 scale)

Charlotte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Nolichucky(hydrologic unit)

French Broad-Holston(hydrologic accounting unit)

Upper Tennessee(hydrologic subregion)

Tennessee(hydrologic region)

Geographic areas

Country State County
United States North Carolina Avery

Comments on the location information

  • SEE PLATE 3, PROF. PAPER 577 FOR LOCATION

Commodities

Commodity Importance
Mica Primary

Comments on the commodity information

  • MUSCOVITE-GREEN, MINOR "A" STRUCTURE MODERATE BENDING, CRACKING, STAINING

Materials information

Materials Type of material
Muscovite Ore

Alteration

  • (Local) Weathered

Host and associated rocks

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

Nearby scientific data

(1) -81.99983, 35.99148
ListMap

Economic information

Geologic structures

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

Ore body information

  • General form LENSES
    Strike NW
    Dip SW
    Plunge SE
    Thickness 3.05M

Comments on the geologic information

  • PLAGIOCLASE, QUARTZ, MUSCOVITE PEGMATITE, FINE TO MEDIUM GRAINED

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Significant No
Production years 1874-1876, INTERMITTENT 1906-1936, 1942, 1953-1957

Mining district

District name Spruce Pine District/Plumtree Area

Comments on the production information

  • PRODUCTION 500-10000 LB

Comments on the workings information

  • CUT 250 FT LONG, OLD STOPES, INCLINES

Reference information

Bibliographic references

Reporter information

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

Beyond USGS

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

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