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Enegren (Power) Mica Mine

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. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10067611
MRDS ID W000403
Record type Site
Current site name Enegren (Power) Mica Mine
Alternate or previous names Enegren Power Mica Mine
Related records 10265073

Geographic coordinates

Geographic coordinates: -72.52152, 41.51699 (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 David E. Enegren. Worked Short Time Prior To 1940. Worked Intermittently 1942 To 1944 By Power Mica Co. Worked Nov. To Dec. 1944 By Peter Armando. Major Working Mined By Open Pit and Underground. Is 53 Feet Long N-S. 30 Feet Wide E-W., and 75 F
  • OWNED BY DAVID E. ENEGREN. WORKED SHORT TIME PRIOR TO 1940. WORKED INTERMITTENTLY 1942 TO 1944 BY POWER MICA CO. WORKED NOV. TO DEC. 1944 BY PETER ARMANDO. MAJOR WORKING MINED BY OPEN PIT AND UNDERGROUND. IS 53 FEET LONG N-S. 30 FEET WIDE E-W., AND 75 FEET DEEP. PEGMATITE 80 FEET LONG. 5 TO 10 FEET WIDE, THIN AT DEPTH OF 75 FEET; STRIKE N 10 DEG. WEST, DIPS 65 DEG. EAST. WITHIN 200 FT. SOUTH ON STRIKE, ARE TWO SMALLER PITS ON THREE OHTER SMALLER PEGMATITE LENSES. MINED ONLY FOR MICA.

Materials information

Materials Type of material
Quartz Ore
Perthite Ore
Muscovite Ore
Beryl Gangue
Apatite Gangue
Pyrite Gangue
Tourmaline Gangue
Garnet Gangue
Albite 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 Metamorphic Rock > Gneiss
    Stratigraphic age (youngest) Late Ordovician
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Plutonic Rock > Pegmatite

Nearby scientific data

(1) -72.52152, 41.51699
ListMap

Economic information

Ore body information

  • Strike N 10 DEG. WEST
    Dip 65 DEG. EAST
    Length 24.38M
    Width 10M
    Depth to bottom 22.86M

Comments on the geologic information

  • Geol.Desc: Part of Pegmatite Dike Swarm. Numerous Swarms of Dikes In Narrow North-South Zone Mostly In the Collins Hill Schist Formation, Individual Dikes Trend Mostly Northward. Pyrite, Usually Not Present, Noted In the Large Working.
  • GEOL.DESC: PART OF PEGMATITE DIKE SWARM. NUMEROUS SWARMS OF DIKES IN NARROW NORTH-SOUTH ZONE MOSTLY IN THE COLLINS HILL SCHIST FORMATION, INDIVIDUAL DIKES TREND MOSTLY NORTHWARD. PYRITE, USUALLY NOT PRESENT, NOTED IN THE LARGE WORKING.

Economic information about the deposit and operations

Development status Producer
Commodity type Non-metallic
Significant No
Production years 1942 TO 1944

Mining district

District name East Hampton

Ownership information

  • Type Operator
    Owner Power Mica Co. And Peter Armando
  • Type Owner
    Owner David E. Enegren

Comments on the production information

  • FIGURES LACKING BUT PRODUCTION SMALL; PEGMATITE GRADE ABOUT 2% MICA. PRODUCED MICA CONCENTRATES.

Comments on the reserve resource information

  • FIGURES LACKING BUT SMALL AMOUNTS OF MICA AVAILABLE FROM SMALL, LOW GRADE PEGMATITE DIKES.

Workings at the site

  • Type of workings Surface/Underground
    Overall length 16.15M
    Overall width 9.14M

Comments on development

  • TOTAL$: US

Reference information

Bibliographic references

  • Deposit

    RODGERS, J., 1959, "EXPLANATORY TEXT FOR GEOL. MAP CONN.," CONN. GEOLOGICAL SURVEY BUL? 84, MAP. TEXT

  • Production

    CAMERON, 1954

  • Deposit

    Cameron, E.N., And Others, 1954, "Pegmatite Invest. 1942-45, New England," Usgs, Pp 255, Pg. 316-318Cameron, E.N., And Others, 1954, "Pegmatite Invest. 1942-45, New England," Usgs, Pp 255, Pg. 316-318

General comments

Subject category Comment text
Deposit Cameron Shows Mine Map Page 317. Stugard'S Geol. Map At 1:24000 Locates Quarry By Symbol. ; Info.Src : 1 Pub Lit
Deposit CAMERON SHOWS MINE MAP PAGE 317. STUGARD'S GEOL. MAP AT 1:24000 LOCATES QUARRY BY SYMBOL. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-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, Moved Point

Beyond USGS

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

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