Beryl Feldspar Pegmatite Prospect No. Cj-035

Occurrence in Middlesex county in Connecticut, United States with commodity Feldspar
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. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10067602
MRDS ID W000392
Record type Site
Current site name Beryl Feldspar Pegmatite Prospect No. Cj-035

Geographic coordinates

Geographic coordinates: -72.59852, 41.56399 (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
Feldspar Primary

Comments on the commodity information

  • Prospect Pit. Information Lacking. Additional Prospect Pit 2400 Feet Nnw. Straits Hill Area Has Swarm of Pegmatite Dikes, Some Bearing Beryl, See Stugard'S Geol. Map.
  • PROSPECT PIT. INFORMATION LACKING. ADDITIONAL PROSPECT PIT 2400 FEET NNW. STRAITS HILL AREA HAS SWARM OF PEGMATITE DIKES, SOME BEARING BERYL, SEE STUGARD'S GEOL. MAP.

Materials information

Materials Type of material
Quartz Ore
Beryl Ore
Feldspar Ore
Feldspar Gangue
Plagioclase 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) -72.59852, 41.56399

Economic information

Comments on the geologic information

  • Geol.Desc: Swarm of Pegmatite Dikes Trending Northward Common In North Trending Collins Hill Schist.
  • GEOL.DESC: SWARM OF PEGMATITE DIKES TRENDING NORTHWARD COMMON IN NORTH TRENDING COLLINS HILL SCHIST.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Non-metallic
Significant No

Mining district

District name Portland

Comments on the production information

  • PROSPECTS IN PEGMATITE DIKE SWARM

Comments on the reserve resource information

  • FIGURES LACKING BUT PROBABLY SMALL AMOUNTS OF FELDSPAR AND BERYL AVAILABLE FROM PEGMATITE DIKE SWARM.

Comments on development

  • TOTAL$: US

Reference information

Bibliographic references

  • Deposit

    BROOKINS, D.G., 1970, "CONTRI. TO GEOCHRON. IN CONN., GEOLOGICAL SURVEY, R.I. NO. 5, PG. 12, 13

  • Production

    STUGARD, 1958

  • Deposit

    Brookins, D.G., 1970, "A Summary Of Geochronological Data For Pegmatites Of The Middletown, Connecticut, Area Accumulated Mainly Since 1952" P. 12, 13, In Armstrong, R.L.., Et Al., "Contrib. To Geochron. In Conn., Cgnhs, Report Of InvestigBrookins, D.G., 1970, "A Summary Of Geochronological Data For Pegmatites Of The Middletown, Connecticut, Area Accumulated Mainly Since 1952" P. 12, 13, In Armstrong, R.L.., Et Al., "Contrib. To Geochron. In Conn., Cgnhs, Report Of Investig

General comments

Subject category Comment text
Deposit Stugard'S Geol. Map At 1:24000, Shows Prospects and Beryl Locations. Brookins' Gives Geochron Age Dates of About 260 M.Y. For Similar Pegmatites. ; Info.Src : 1 Pub Li T
Deposit STUGARD'S GEOL. MAP AT 1:24000, SHOWS PROSPECTS AND BERYL LOCATIONS. BROOKINS' GIVES GEOCHRON AGE DATES OF ABOUT 260 M.Y. FOR SIMILAR PEGMATITES. ; 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.