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Granville Talc Mine

Past Producer in Addison county in Vermont, United States with commodity Talc-Soapstone
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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. Ore body information
  10. Economic information about the deposit and operations
  11. Land status
  12. Ownership information
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10081658
MRDS ID W033926
Record type Site
Current site name Granville Talc Mine
Alternate or previous names East Granville Talc Mine

Geographic coordinates

Geographic coordinates: -72.7514, 44.0161 (WGS84)
Elevation 351
Relative position 0.3 MILES EAST OF EAST GRANVILLE, VT.

Site location context

Political divisions (FIPS codes)

Addison(county)

Vermont(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Warren(quadrangle 1:24,000 scale)

Montpelier(quadrangle 1:100,000 scale)

Lake Champlain(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

White River(hydrologic unit)

Upper Connecticut(hydrologic accounting unit)

Connecticut(hydrologic subregion)

New England(hydrologic region)

Geographic areas

Country State County
United States Vermont Addison

Comments on the location information

  • THE GRANVILLE MINE IS REACHED FROM A WOOD ROAD WHICH APPROACHES FROM THE SOUTH. 0.7 MILES NORTHEAST OF THIS LOCATION IS ANOTHER NS-TRENDING GROUP OF ULTRAMAFIC PODS.; PREVIOUS QUAD DESIGNATION = WARREN (1970) 1:24000

Commodities

Commodity Importance
Talc-Soapstone Primary

Materials information

Materials Type of material
Talc Ore
Steatite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Phyllite
  • Host or associated Host
    Rock type Metamorphic Rock > Schist
    Rock unit name Stowe Formation;Missisquoi Formation
    Rock description Stowe Formation;Missisquoi Formation

Nearby scientific data

(1) -72.7514, 44.0161
ListMap

Economic information

Ore body information

  • General form POD OR LENS

Comments on the geologic information

  • THE ULTRAMAFIC PODS ARE ENCLOSED BY THE STOWE FORMATION AT THE GRANVILLE MINE AND BY THE MISSISQUOI FORMATION FURTHER EAST.
  • The Ultramafic Pods Are Enclosed By the Stowe Formation At the Granville Mine and By the Missisquoi Formation Further East.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Deposit size Medium
Significant No
Year of first production 1925
Year of last production 1925

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Eastern Talc Co.

Workings at the site

  • Type of workings Underground
    Area 0.657HA
    Overall length 304.8M
    Overall width 22.86M

Comments on the workings information

  • AS AREA IS EXTENSIVELY CAVED IN, IT IS HARD TO DETERMINE ORIGINAL DIMENSIONS OF THE WORKINGS. THE DEPOSIT WAS OPENED BY TWO TUNNELS STACKED VERTICALLY AND ENTERING FROM THE SOUTH.

Reference information

Bibliographic references

  • Deposit

    MORRILL, P. AND CHAFFEE, R., 1964, VERMONT MINES AND MINERAL LOCALITIES: (MONTSHIRE MUSEUM; HANOVER, NH), P. 21.

  • Deposit

    JACOBS, E.C., 1914, TALC AND THE TALC DEPOSITS OF VERMONT: VERMONT STATE GEOLOGIST, 9TH REPORT (1913-1914), P. 408.

  • Deposit

    CHIDESTER, A.H., BILLINGS, M.P. AND CADY, W.M., 1951, TALC INVESTIGATIONS IN VERMONT, PRELIMINARY REPORT: USGS CIRCULAR 95, PP 25-26.

  • Deposit

    DOLL, C.G., ET AL, 1961, CENTENNIAL GEOLOGIC MAP OF VERMONT: STATE OF VERMONT; (MONTPELIER, VT).

  • Deposit

    Dennis, J.G., 1956, The Geology Of The Lyndonville Area, Vermont: Vermont Geological Survey Bulletin 8, 98 P.Dennis, J.G., 1956, The Geology Of The Lyndonville Area, Vermont: Vermont Geological Survey Bulletin 8, 98 P.

General comments

Subject category Comment text
Deposit FORMS A CHAIN OF LENSES 50 TO 400 FEET IN LENGTH AND 15 TO 50 FEETIN WIDTH.
Deposit CHIDESTER, ET AL (1951) GIVES ACCURATE DIRECTIONS TO THE MINE. HE ALSO STATES THAT SOME OF THE DEPOSIT IS NOT OF ULTRAMAFIC ORIGIN, RATHER DIRECT ALTERATION OF THE COUNTRY ROCK. ; INFO.SRC : 1 PUB LIT; 3 FIELD OBSERV

Reporter information

Type Date Name Affiliation Comment
Editor 01-JAN-2003 L. G. Woodruff U.S. Geological Survey checked references; location; commodities; ore materials
Reporter 01-JUL-1985 McBean, Alan J. (Ratte, Charles A.) Vermont Agency of Environmental Conservation

Beyond USGS

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

Maps centered on this site