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Mason Feldspar Prospect

Occurrence in Swain county in North Carolina, United States with commodity Feldspar
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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. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Ownership information
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10026059
MRDS ID K002517
Record type Site
Current site name Mason Feldspar Prospect
Related records 10152126

Geographic coordinates

Geographic coordinates: -83.47072, 35.43927 (WGS84)
Relative position 2,700 FEET N 55 W OF FRANKLIN GROVE CHURCH

Site location context

Political divisions (FIPS codes)

Swain(county)

North Carolina(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bryson City(quadrangle 1:24,000 scale)

Fontana Lake(quadrangle 1:100,000 scale)

Knoxville(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Tuckasegee(hydrologic unit)

Upper Tennessee(hydrologic accounting unit)

Upper Tennessee(hydrologic subregion)

Tennessee(hydrologic region)

Geographic areas

Country State County
United States North Carolina Swain

Commodities

Commodity Importance
Feldspar Tertiary

Materials information

Materials Type of material
Pegmatite Ore
Biotite Gangue
Kaolinite Gangue
Muscovite Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Gabbro
    Stratigraphic age (youngest) Early Devonian
    Stratigraphic age (youngest) Early Devonian
  • Host or associated Associated
    Rock type Metamorphic Rock > Gneiss
    Rock unit name Border Gneiss, Microcline Porphyroblasts In Medium-To Coarse-Grained Matrix Of Biotite, Quartz, And Felfspar;Mpal;Prec Mpal 1050-320 M.Y.;Prec Mpal 1050-320 M.Y
    Rock description Border Gneiss, Microcline Porphyroblasts In Medium-To Coarse-Grained Matrix Of Biotite, Quartz, And Felfspar;Mpal;Prec Mpal 1050-320 M.Y.;Prec Mpal 1050-320 M.Y
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss

Nearby scientific data

(1) -83.47072, 35.43927
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Principal Zone Of Pegmatites Trends Northeast; Most Pegmatites Strike Northeast, But Some Strike Northwest.

Ore body information

  • General form TABULAR, LENS
    Strike NW
    Dip S

Controls for ore emplacement

  • Fracture, Dilation Zone (Cameron, 1951)

Comments on the geologic information

  • IN THE MIDDLE OPEN CUT, A HALF-INCH BORDER ZONE OF PLAGIOCLASE-QUARTZ PEGMATITE WITH ACCESSORY BIOTITE ENCLOSES A 1-FOOT WALL ZONE OF MEDIUM-GRAINED PLAGIOCLASE-QUARTZ PEGMATITE, WHICH GRADES IN TURN INTO A INTERMEDIATE ZONE OF PLAGIOCLASE-QUARTZ-PERTHITE PEGMATITE. THE CORE CONSISTS OF COARSE PERTHITE-QUARTZ PEGMATITE WITH ACCESSORY BIOTITE, THE WHOLE BEING VERY DECOMPOSED. THE TWO PEGMATITES IN THE ADIT IN THE LOWER WORKING CONSIST ENTIRELY OF COARSE TO VERY COARSE PERTHITE AND PLAGIOCLASE, THE LATTER OF WHICH IS COMPLETELY KAOLINIZED. BIOTITE AND MUSCOVITE ARE ALSO PRESENT. QUARTZ IS NOTICEABLY ABSENT.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Non-metallic
Significant No

Mining district

District name Bryson City Feldspar District

Ownership information

  • Type Operator
    Owner W. J. Alexander
  • Type Owner
    Owner Zollie Mason

Workings at the site

  • Type of workings Surface/Underground
    Overall length 19.81M
    Overall width 19.81M

Comments on the workings information

  • WORKINGS CONSIST OF 3 CUTS LEADING TO 3 ADITS.

Comments on development

  • THE LOWER OF TWO ADITS WAS DRIVEN BY W.J. ALEXANDER; THE UPPER TWO ADITS WERE DRIVEN BY MR. MASON. ; ECON.COM: THE TONNAGE OF FELDSPAR AT THE PROSPECT APPEARS TO BE SMALL.

Reference information

Bibliographic references

  • Deposit

    CAMERON, E.N., 1951, FELDSPAR DEPOSITS OF THE BRYSON CITY DISTRICT, NORTH CAROLINA: NORTH CAROLINA DIV. MINERAL RESOURCES BULL. 62, P. 100

  • Deposit

    1951 OTHER CAMERON, E.N., N.C. BULL. 6

  • Production

    CAMERON, E.N., 1951, N.C. DIV. MIN. RES. BULL. 62

General comments

Subject category Comment text
Deposit BORDER GNEISS AND GRANITIC GNEISS ARE INTERLAYERED.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1974 Hale, Robin C. U.S. Geological Survey

Beyond USGS

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

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