Rocky Ridge Mine

Past Producer in Mitchell county in North Carolina, United States with commodity Mica

Geologic information

Identification information

Deposit ID 10102364
MRDS ID K003597
Record type Site
Current site name Rocky Ridge Mine

Geographic coordinates

Geographic coordinates: -82.06373, 36.04981 (WGS84)
(click for info)

Geographic areas

Country State County
United States North Carolina Mitchell

Comments on the location information

  • SEE PLATE 3, USGS PROF. PAPER 577 FOR LOCATION

Commodities

Commodity Importance
Mica Primary

Comments on the commodity information

  • MUSCOVITE - GREEN, MINERAL INCLUSIONS, BENT, CRACKED

Materials information

Materials Type of material
Sericite Gangue

Alteration

  • (Local) Weathered

Host and associated rocks

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

Nearby scientific data

(1) -82.06373, 36.04981

Geologic structures

Type of structure Local
Structure description Pegmatite Is Concordant With The Foliation Of The Enclosing Country Rock

Ore body information

  • General form LENS
    Strike NW
    Dip SW
    Thickness 0.91M

Comments on the geologic information

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

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Significant No
Year of first production 1939

Mining district

District name Spruce Pine District/Plumtree Area

Comments on the workings information

  • CUT 18 FT LONG, ADIT 15 FT

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS K003597

Bibliographic references

  • Deposit

    LESURE, F.G., 1968, MICA DEPOSITS OF THE BLUE RIDGE IN NORTH CAROLINA: U.S. GEOLOGICAL SURVEY PROF. PAPER 577, 124 P

  • Deposit

    1968 COMPILE LESURE, F.G. ; REPOR

  • Production

    LESURE, F.G., 1968, USGS PROF. PAPER 577.

General comments

Subject category Comment text
Deposit DATA ABSTRACTED FROM USGS PROF. PAPER 577.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1975 Fagan, James M. U.S. Geological Survey