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Bordonaro Beryl Prospect and Feldspar and Mica Mine

Past Producer in Middlesex 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. 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. Ownership information
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10067597
MRDS ID W000385
Record type Site
Current site name Bordonaro Beryl Prospect and Feldspar and Mica Mine
Related records 10281306

Geographic coordinates

Geographic coordinates: -72.59652, 41.62199 (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
Mica Secondary

Comments on the commodity information

  • Owned By Sam Bordonaro (1954). In 1929 Leased and Mined For Feldspar By Joseph Carini. In 1935 Worked By Bordonaro For Feldspar and Mica. Prospected and Drilled In 1943 By B.M. Workings 85 Feet Long North-South, 5 To 10 Feet Wide East-West, and 5 To 15
  • OWNED BY SAM BORDONARO (1954). IN 1929 LEASED AND MINED FOR FELDSPAR BY JOSEPH CARINI. IN 1935 WORKED BY BORDONARO FOR FELDSPAR AND MICA. PROSPECTED AND DRILLED IN 1943 BY B.M. WORKINGS 85 FEET LONG NORTH-SOUTH, 5 TO 10 FEET WIDE EAST-WEST, AND 5 TO 15 FEET DEEP. DIKE STRIKES NORTH TO NORTHWEST, DIPS WEST AT MODERATE ANGLES. FOUR PEGMATITE DIKES IN AREA. LARGEST DIKE ABOUT 170 FEET LONG, ABOUT 1 TO 6 FEET THICK.

Materials information

Materials Type of material
Beryl Ore
Quartz Ore
Muscovite Ore
Plagioclase Ore
Garnet Gangue
Tourmaline Gangue
Albite 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 Metamorphic Rock > Gneiss
    Stratigraphic age (youngest) Late Permian

Nearby scientific data

(1) -72.59652, 41.62199
ListMap

Economic information

Comments on the geologic information

  • Geol.Desc: Swarm of Pegmatite Dikes; One of Numerous Swarms In Northward Trending Zone, Mostly In the Collins Hill Schist, But Also In the Eastward Adjacent Glastonbury Granite Gneiss and Westward Adjacent Pre-Ordovician Middletown Gneiss.
  • GEOL.DESC: SWARM OF PEGMATITE DIKES; ONE OF NUMEROUS SWARMS IN NORTHWARD TRENDING ZONE, MOSTLY IN THE COLLINS HILL SCHIST, BUT ALSO IN THE EASTWARD ADJACENT GLASTONBURY GRANITE GNEISS AND WESTWARD ADJACENT PRE-ORDOVICIAN MIDDLETOWN GNEISS.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Significant No
Production years 1929, 1935

Mining district

District name Portland

Ownership information

  • Type Owner
    Owner Bordonard, Sam
    First year 1954

Comments on the production information

  • FIGURES LACKING BUT PRODUCTION SMALL; PROSPECTED FOR BERYL 1943, ESTIMATE BERYL 0.7%. FELDSPAR AND MICA CONCENTRATES WERE PRODUCED.

Comments on the reserve resource information

  • FIGURES LACKING BUT PROBABLY LARGE AMOUNTS OF FELDSPAR AVAILABLE FROM PEGMATITE SWARM.

Workings at the site

  • Type of workings Unknown
    Overall length 25.91M
    Overall width 3.05M

Comments on development

  • TOTAL$: US

Reference information

Bibliographic references

  • Deposit

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

  • Production

    CAMERON, 1954

  • Deposit

    Cameron, E.N., And Others, 1954, "Pegmatite Invest. 1942-45, New England, " Usgs, Pp. 255, Text, Mine Loc. Map, Pg. 311-313Cameron, E.N., And Others, 1954, "Pegmatite Invest. 1942-45, New England, " Usgs, Pp. 255, Text, Mine Loc. Map, Pg. 311-313

  • Deposit

    Stugard, Jr., F., 1958, "Pegmatites Of Middletown, Conn., USGS Bull. 1042q, Map, Text.Stugard, Jr., F., 1958, "Pegmatites Of Middletown, Conn., USGS Bull. 1042q, Map, Text.

General comments

Subject category Comment text
Deposit Cameron Shows Mine Map and Drill Logs. Brookins' Gives Geochron Dates of 255 and 252 M.Y. For Pegmatite. Stugard'S Geol. Map At 1:24000. Report In USGS Files. ; Info.Src : 1 Pub Lit
Deposit CAMERON SHOWS MINE MAP AND DRILL LOGS. BROOKINS' GIVES GEOCHRON DATES OF 255 AND 252 M.Y. FOR PEGMATITE. STUGARD'S GEOL. MAP AT 1:24000. 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 Added Model_Num And Model
Updater 20-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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