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State Forest No. 2 Mica Mine

Past Producer in Middlesex county in Connecticut, United States with commodity 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. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10105451
MRDS ID W000390
Record type Site
Current site name State Forest No. 2 Mica Mine
Related records 10240524

Geographic coordinates

Geographic coordinates: -72.55152, 41.57499 (WGS84)

Site location context

Political divisions (FIPS codes)

Middlesex(county)

Connecticut(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Middle Haddam(quadrangle 1:24,000 scale)

Hartford(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
Mica Primary

Comments on the commodity information

  • Owned By Forestry Dept. State of Conn.; Mined In 1942 By J. Carini For Mica; Mined 1943 By F. and J. Burrone For Mica. In 1943 Open Cut About 80 Feet Long Ne-Se, 10 To 20 Feet Wide Se-Nw, and 10 To 20 Feet Deep, But Working Mostly Backfilled. Tabular P
  • OWNED BY FORESTRY DEPT. STATE OF CONN.; MINED IN 1942 BY J. CARINI FOR MICA; MINED 1943 BY F. AND J. BURRONE FOR MICA. IN 1943 OPEN CUT ABOUT 80 FEET LONG NE-SE, 10 TO 20 FEET WIDE SE-NW, AND 10 TO 20 FEET DEEP, BUT WORKING MOSTLY BACKFILLED. TABULAR PEGMATITE STRIKES N. 5 DEG. W. TO N. 50 DEG.W. WITH DIP 18 DEG. NE TO VERTICAL, GENERALDIP 45 DEG. NE. PEGMATITE TRACED 90 FEET LONG. MICA BOOKS 2 TO 10 INCHES BROAD, 0.25 TO 5.0 INCHES THICK. BERYL CRYSTALS ONE TO 5 INCHES THICK, ONE TO 17 INCHES LONG. MINED FOR ONLY MICA.

Materials information

Materials Type of material
Quartz Ore
Beryl Ore
Feldspar Ore
Mica Ore
Tourmaline Gangue
Apatite Gangue
Biotite Gangue
Plagioclase Gangue
Perthite 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 Host
    Rock type Plutonic Rock > Pegmatite
    Stratigraphic age (youngest) Late Permian

Nearby scientific data

(1) -72.55152, 41.57499
ListMap

Economic information

Ore body information

  • Strike N. 5 DEG. W. TO N. 50 DEG. W.
    Dip N-E 18 DEG TO VERTICAL.
    Length 27.43M

Comments on the geologic information

  • Geol.Desc: Dike Related To Numerous Swarms In Northward Trending Zone Present Mostly In the Collins Hill Schist, Dikes Also Present In the Lower Paleozoic Glastonbury Granite Gneiss and Pre-Ordovician Middletown Gne Iss.
  • GEOL.DESC: DIKE RELATED TO NUMEROUS SWARMS IN NORTHWARD TRENDING ZONE PRESENT MOSTLY IN THE COLLINS HILL SCHIST, DIKES ALSO PRESENT IN THE LOWER PALEOZOIC GLASTONBURY GRANITE GNEISS AND PRE-ORDOVICIAN MIDDLETOWN GNEISS.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Deposit size Small
Significant No
Year of first production 1943
Production years 1942, 1943

Mining district

District name East Hampton

Ownership information

  • Type Operator
    Owner F. And J. Burrone
  • Type Owner
    Owner Forestry Department State Of Connectiout

Comments on the production information

  • MICA YIELD ABOUT 1.3%, POOR FOR FELDSPAR AND BERYL. ONLY A FEW TONS OF MICA CONCENTRATES PRODUCED.

Comments on the reserve resource information

  • SINGULAR PEGMATITES TOO SMALL AND LOW GRADE FOR DEVELOPMENT; ONLY SMALL QUANTITIES OF MICA, FELDSPAR AND BERYLCONCENTRATES AVAILABLE; LOCATION IN STATE FOREST PRESERVE NOT CONDUCIVE TO EXPLOITATION.

Comments on development

  • TOTAL$: US

Reference information

Bibliographic references

  • Deposit

    STUGARD, JR., F., 1958, "PEGMATITES OF MIDDLETOWN CONN., "USGS BULL. 1042 Q, MAP,TEXT

  • Production

    CAMERON, 1954

  • Deposit

    Stugard, Jr., F., 1958, "Pegmatites Of Middletown Conn., "Usgs Bull. 1042 Q, Map, Pg. 648Stugard, Jr., F., 1958, "Pegmatites Of Middletown Conn., "Usgs Bull. 1042 Q, Map, Pg. 648

  • Deposit

    Cameron, E.N., And Others, 1954, "Pegmatite Invest. 1942-45, New England," Usgs, Pp.255, Pg. 331-333Cameron, E.N., And Others, 1954, "Pegmatite Invest. 1942-45, New England," Usgs, Pp.255, Pg. 331-333

General comments

Subject category Comment text
Deposit CAMERON SHOWS MINE MAP ON PAGE 332. STUGARD'S GEOL. MAP AT 1:24000 LOCATES MINE AS BERYL PROSPECT. BROOKINS' GIVES GEOCHRON AGE DATES OF ABOUT 260 M.Y. FOR SIMILAR PEGMATITES. REPORT IN USGS FILES. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1972 D'Agostino, John P. U.S. Geological Survey
Updater 21-AUG-1997 Mchone, Nancy Connecticut Geological and Natural History Survey Added Model_Num And Model

Beyond USGS

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

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