1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Boylston Mine

Past Producer in Henderson county in North Carolina, United States with commodities Gold, Lead, Copper
Map
XML
JSON
KML
B
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Production statistics
  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 10099356
MRDS ID RE00703
Record type Site
Current site name Boylston Mine
Alternate or previous names Boilston

Geographic coordinates

Geographic coordinates: -82.62653, 35.35289 (WGS84)

Site location context

Political divisions (FIPS codes)

Henderson(county)

North Carolina(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Pisgah Forest(quadrangle 1:24,000 scale)

Hendersonville(quadrangle 1:100,000 scale)

Knoxville(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper French Broad(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 Henderson

Comments on the location information

  • LOCATION FROM USGS BULLETIN 1979

Commodities

Commodity Importance
Gold Primary
Lead Tertiary
Copper Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Gold Ore
Pyrite Ore
Quartz Gangue

Analytical data

Result VEIN 1- ASSAYS OF 0.19 OPT AU, 0.38 OPT AG AND 0.65 OPT AU, 0.4 OPT AG
Result VEIN 2 - 0.19 OPT AU AND 4.2 OPT AG, 0.19 AU AND 0.38 OPT AG
Result VEIN TWO AVERAGE OF 7 REPRESENTATIVE SAMPLES 0.28 OPT AU AND 0.41 OPT AG
Result VEIN 3 - 0.9 OPT AU AND 0.24 AG
Result VEIN 4 - 0.15 OPT AU AND 0.43 AG. AND

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite
    Rock unit name Ocoee Supergoup
    Rock description Ocoee Supergoup

Nearby scientific data

(1) -82.62653, 35.35289
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Foliation N 20-30 E Dipping 35-60 Degrees, Crenulated

Ore body information

  • General form TABULAR
    Strike N 30 E
    Dip 25-75 NW
    Thickness 1M
    Length 3600M
    Width 900M

Controls for ore emplacement

  • Precipitation From Hydrothermal Fluids In Fractures Subparallel To Regional Foliation

Comments on the geologic information

  • FOUR QUARTZ VEINS 1-4 FEET THICK WITHIN FINE GRAINED SCHISTS. VEIN PERSISTSuFOR 450 M. QUARTZ VEIN CUTS GRANITE AND SCHISTOSE COUNTRY ROCK.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1885
Discoverer Wm. Allison
Year of first production 1886
Year of last production 1894

Production statistics

  • Year 1896
    Period 1885-1896
    Material AG
    Accuracy Estimate
    Description Cp_Grade: ^0.4 Opt Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Silver Silver 11g/mt
  • Year 1896
    Period 1885-1896
    Material AU
    Accuracy Estimate
    Description Cp_Grade: ^0.19 Opt Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold 5g/mt

Workings at the site

  • Type of workings Surface/Underground
    Length 180M
    Overall length 420.62M
    Overall width 900M

Comments on the workings information

  • SERIES OF OPEN CUTS ALONG THE VEIN FOR OVER 460 M; 8 DRIFTS 30-50 M LONG.

Reference information

Bibliographic references

  • Analytical Data

    NITZE AND HANNA, 1896

  • Deposit

    NITZE, H.B.C., AND HANNA, G.B., 1896, GOLD DEPOSITS OF NORTH CAROLINA: NORTH CAROLINA GEOLOGICAL SURVEY BULLETIN NO.3. P 181-191

  • Production

    CALCULATED FROM INFORMATION GIVEN BY NITZE AND HANNA AT $20.67/OZ AU AND $1.29/OZ AG.

  • Reserve-Resource

    CALCULATED FROM DATA GIVEN BY NITZE AND HANNA, 1896

  • Reserve-Resource

    CALCULATED FROM DATA OF NITZE AND HANNA, 1896

General comments

Subject category Comment text
Deposit FOUR VEINS ARE PARALLEL RANGING FROM 1-4 FT THICK IN ZONE 900 MuWIDE. GOLD IS USUALLY IN ZONES 2-16 CM WIDE ALONG THE HANGINGuWALL OF THE VEIN.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1992 Klein, T.L. 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