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Green Mountain Feldspar and Mica Mine

Past Producer in Litchfield county in Connecticut, United States with commodities Feldspar, 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. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Ownership information
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10068181
MRDS ID W001127
Record type Site
Current site name Green Mountain Feldspar and Mica Mine
Related records 10265008

Geographic coordinates

Geographic coordinates: -73.36621, 41.86499 (WGS84)

Site location context

Political divisions (FIPS codes)

Litchfield(county)

Connecticut(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cornwall(quadrangle 1:24,000 scale)

Waterbury(quadrangle 1:100,000 scale)

Hartford(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Housatonic(hydrologic unit)

Connecticut Coastal(hydrologic accounting unit)

Connecticut Coastal(hydrologic subregion)

New England(hydrologic region)

Geographic areas

Country State County
United States Connecticut Litchfield

Commodities

Commodity Importance
Feldspar Primary
Mica Primary

Comments on the commodity information

  • OWNED BY EDWARD A. SCHLEUTER IN 1944. WORKED MANY YEARS AGO FOR FELDSPAR AND MICA FROM OPEN PIT ABOUT 150 FEET LONG, 15 TO 40 FEET WIDE, AS MUCH AS 35 FEET DEEP ON A TABULAR PEGMATITE 15 TO 25 FEET THICK. AT EAST END OF PIT STRIKE EAST AND DIP STEEPLY SOUTH, AT WEST END OF PIT STRIKE N. 50 DEG. WEST, DIP STEEPLY SOUTHWEST. PEGMATITE OUTCROP PINCHES OUT EASTWARD 50 FEET BEYOND EAST END OF PIT. POOR QUALITY MICA IN ONE TO THREE FOOT ZONE

Materials information

Materials Type of material
Muscovite Ore
Plagioclase Ore
Quartz Ore

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss

Nearby scientific data

(1) -73.36621, 41.86499
ListMap

Economic information

Ore body information

  • Thickness 7.62M

Controls for ore emplacement

  • Pegmatite Dike

Comments on the geologic information

  • GEOL.DESC: WALLROCK GRAY GRANITIC BIOTITE GNEISS WITH FOLIATION STRIKE N. 70 DEG. EAST, DIP 43 DEG. SE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Significant No
Production years UNKNOWN

Mining district

District name Cornwall

Ownership information

  • Type Owner
    Owner Edward A. Schleuter
    First year 1944

Comments on the production information

  • POOR QUALITY MICA DEPOSIT. ONLY MINOR AMOUNTS OF FELDSPAR. PRODUCED FELDSPAR AND MICA CONCENTRATES.

Comments on the reserve resource information

  • SMALL QUANTITY OF MICA AND FELDSPAR AVAILABLE FROM THIS DEPOSIT.

Workings at the site

  • Type of workings Unknown
    Overall length 45.72M
    Overall width 12.19M

Comments on development

  • TOTAL$: US

Reference information

Bibliographic references

  • Deposit

    CAMERON, E. N., 1954, "PEGMATITE INVEST. 1942-45, NEW ENGLAND", USGS, PP. 255, TEXT, PG. 305

  • Production

    CAMERON, 1954

General comments

Subject category Comment text
Deposit REPORT IN USGS FILES ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1972 D'Agostino, John P. U.S. Geological Survey

Beyond USGS

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

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