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Gillette Gem Tourmaline, Mineral Specimens, Mica, Feldspar Mine (Also

Past Producer in Middlesex county in Connecticut, United States with commodities Gemstone, 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. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  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 10068034
MRDS ID W000945
Record type Site
Current site name Gillette Gem Tourmaline, Mineral Specimens, Mica, Feldspar Mine (Also
Alternate or previous names Gillette Gem Tourmaline, Mineral Specimens, Mica, Feldspar Mine Also Called the J-J Mine
Related records 10167375

Geographic coordinates

Geographic coordinates: -72.51052, 41.49299 (WGS84)

Site location context

Political divisions (FIPS codes)

Middlesex(county)

Connecticut(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Haddam(quadrangle 1:24,000 scale)

New Haven(quadrangle 1:100,000 scale)

Hartford(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Outlet Connecticut River(hydrologic unit)

Lower Connecticut(hydrologic accounting unit)

Connecticut(hydrologic subregion)

New England(hydrologic region)

Geographic areas

Country State County
United States Connecticut Middlesex

Commodities

Commodity Importance
Gemstone Primary
Feldspar Primary
Mica Primary

Comments on the commodity information

  • Mined 1896 For Gem Minerals and Feldspar By Mr. Schernikow and J. C. Wilkes. Again 1907 To 1914. In 1934 For Feldspar By B. E. Johnson. In 1942 To 1944 By B. E. Johnson and E. H. Johnson For Mica and Feldspar. Complex Pegmatite of Interconnected Lense
  • MINED 1896 FOR GEM MINERALS AND FELDSPAR BY MR. SCHERNIKOW AND J. C. WILKES. AGAIN 1907 TO 1914. IN 1934 FOR FELDSPAR BY B. E. JOHNSON. IN 1942 TO 1944 BY B. E. JOHNSON AND E. H. JOHNSON FOR MICA AND FELDSPAR. COMPLEX PEGMATITE OF INTERCONNECTED LENSES WITH STRIKE NORTH TO N. 35 DEG. WEST, DIP VARIABLE. LENGTH OF EXPOSED PEGMATITE 330 FEET LONG, 15 TO 80 FEET WIDE. NARROW U-SHAPE OPEN CUT LENGTH 350 FEET NORTH-SOUTH, WIDTH 260 FEET EAST-WEST, AND DEPTH ABOUT 70 FEET. SITE ABOUT 500 FEET FROM NORTHEAST BANK OF CONN. RIVER; BOTTOM OF PIT BELOW RIVER LEVEL.

Materials information

Materials Type of material
Quartz Ore
Perthite Ore
Plagioclase Ore
Muscovite Ore
Tourmaline Ore
Garnet Gangue
Beryl Gangue
Albite Gangue
Lepidolite Gangue
Apatite Gangue
Fluorite Gangue

Mineral occurrence model information

Model code 33
USGS model code 13a
Deposit model name Be-Li pegmatites

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Stratigraphic age (youngest) Late Permian
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss
  • Host or associated Host
    Rock type Plutonic Rock > Pegmatite

Nearby scientific data

(1) -72.51052, 41.49299
ListMap

Economic information

Ore body information

  • Strike N. 35 DEG. WEST
    Dip VARIABLE
    Length 100.58M
    Width 80M

Comments on the geologic information

  • Geol.Desc: Large Number and Amount of Various Colored Crystals. Green, Pink, and Black Tourmaline, Green and Rose Beryl, Red Fluorite, Green Apatite, White and Pink Perthite, Green and Ruby Muscovite. Mostly In Cavities, Good Specimen Zone Presently U
  • GEOL.DESC: LARGE NUMBER AND AMOUNT OF VARIOUS COLORED CRYSTALS. GREEN, PINK, AND BLACK TOURMALINE, GREEN AND ROSE BERYL, RED FLUORITE, GREEN APATITE, WHITE AND PINK PERTHITE, GREEN AND RUBY MUSCOVITE. MOSTLY IN CAVITIES, GOOD SPECIMEN ZONE PRESENTLY UNDER WATER OF POND.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Significant No
Year of first production 1896
Production years 1896; 1907 TO 1914; 1934; 1942 TO 1944

Mining district

District name Haddam

Ownership information

  • Type Operator
    Owner B. E. Johnson And E. H. Johnson
    First year 1944

Comments on the production information

  • MOST GEM STONES AND FELDSPAR PRODUCED BEFORE 1914; MICA PRODUCTION IN 1943. PEGMATITE TOO COMPLEX FOR FELDSPAR, TOO SPORADIC FOR MICA; ESTIMATED BERYL CONTENT VERY LOW.

Comments on the reserve resource information

  • FIGURES LACKING BUT LARGE AMOUNTS OF COMPLEX ORE AVAILABLE FOR FELDSPAR CONCENTRATES.

Workings at the site

  • Type of workings Unknown
    Overall length 106.68M
    Overall width 60.96M

Comments on development

  • TOTAL$: US

Reference information

Bibliographic references

  • Deposit

    CAMERON, E. N., 1954, "PEGMATITE INVEST. 1942-45, NEW ENGLAND", USGS, PP. 255, PG. 21, 318-321

  • Production

    CAMERON, 1954

  • Deposit

    Cameron, E. N., 1954, "Pegmatite Invest. 1942-45, New England", Usgs, Pp. 255, Pg. 21, 318-321Cameron, E. N., 1954, "Pegmatite Invest. 1942-45, New England", Usgs, Pp. 255, Pg. 21, 318-321

  • Deposit

    Ryerson, K. H., 1968, "Rock Hound'S Guide To Conn.", The Pequot Press, Pg. 19Ryerson, K. H., 1968, "Rock Hound'S Guide To Conn.", The Pequot Press, Pg. 19

General comments

Subject category Comment text
Deposit USGS, Topo, 1961, "Haddam", At 1:24000 Locates Quarry and Shows As Depression. Cameron Shows Mine Map Page 319; Additional Unpub. Report In USGS Files. ; Info.Src : 1 Pub Lit
Deposit USGS, TOPO, 1961, "HADDAM", AT 1:24000 LOCATES QUARRY AND SHOWS AS DEPRESSION. CAMERON SHOWS MINE MAP PAGE 319; ADDITIONAL UNPUB. 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 Added Model_Num And Model
Updater 21-AUG-1997 Mchone, Nancy Connecticut Geological and Natural History Survey

Beyond USGS

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

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