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Mt. Tom Beryl Prospect

Occurrence in Middlesex county in Connecticut, United States with commodity Beryllium
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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 10067779
MRDS ID W000614
Record type Site
Current site name Mt. Tom Beryl Prospect

Geographic coordinates

Geographic coordinates: -72.47551, 41.49399 (WGS84)

Site location context

Political divisions (FIPS codes)

Middlesex(county)

Connecticut(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Deep River(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
Beryllium Critical Primary

Comments on the commodity information

  • Part of Dike Owned By Mrs. Rosodowski and Part Owned By David and Saul Klar. Pegmatite Body Between 600 and 1100 Feet Long, 50 To 150 Feet Wide With Small Pits As Much As 6 Feet Deep. Trends North To N. 10 Deg. West. Outcrops As Flat Sheet To Northwest;
  • PART OF DIKE OWNED BY MRS. ROSODOWSKI AND PART OWNED BY DAVID AND SAUL KLAR. PEGMATITE BODY BETWEEN 600 AND 1100 FEET LONG, 50 TO 150 FEET WIDE WITH SMALL PITS AS MUCH AS 6 FEET DEEP. TRENDS NORTH TO N. 10 DEG. WEST. OUTCROPS AS FLAT SHEET TO NORTHWEST; WEST CONTACT DIPS 3 DEG. TO 45 DEG. WEST; EAST CONTACT STRIKES N. 10 DEG. WEST, DIPS 18 DEG. WEST. SMALL BERYL CRYSTALS.

Materials information

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

Nearby scientific data

(1) -72.47551, 41.49399
ListMap

Economic information

Ore body information

  • Strike N. 10 DEG. WEST
    Dip WEST CONTACT: 3 DEG. TO 45 DEG. WEST
    Length 182.88M
    Width 150M
  • Dip WEST CONTACT: 3 DEG. TO 45 DEG. WEST
    Length 335.28M

Comments on the geologic information

  • Geol.Desc: Numerous Pegmatite Dike Swarms In North-South Zone To Northwest of Area, Most Dikes Trend Northward and Are In the Middle Ordovician Collins Hill Schist Formation
  • GEOL.DESC: NUMEROUS PEGMATITE DIKE SWARMS IN NORTH-SOUTH ZONE TO NORTHWEST OF AREA, MOST DIKES TREND NORTHWARD AND ARE IN THE MIDDLE ORDOVICIAN COLLINS HILL SCHIST FORMATION

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mining district

District name East Haddam

Ownership information

  • Type Owner
    Owner Mrs. Rosodowski And David And Saul Klar.

Comments on the production information

  • BERYL PROSPECT, ESTIMATE BERYL CONTENT 0.24%; MICA MINOR; FELDSPAR ORE COMPLEX.

Comments on the reserve resource information

  • SMALL QUANTITIES OF BERYL AVAILABLE FROM SMALL, LOW GRADE DEPOSIT.

Comments on development

  • TOTAL$: US

Reference information

Bibliographic references

  • Deposit

    LARRABEE, D.M., NO DATE, "MT. TOM BERYL PROSPECT", USGS, UNPUB. REPORT, MAP, TEXT

  • Production

    LARRABEE, NO DATE.

  • Reserve-Resource

    LARRABEE, NO DATE

  • Deposit

    Barton, W.R., And Goldsmith, C.E., 1968, New England Beryllium Investigations, U.S. Bureau Of Mines Report Investigations 7070, Pg. 77, 79-80Barton, W.R., And Goldsmith, C.E., 1968, New England Beryllium Investigations, U.S. Bureau Of Mines Report Investigations 7070, Pg. 77, 79-80

General comments

Subject category Comment text
Deposit Info.Src : 1 Pub Lit; 2 Unpub Rept

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

Beyond USGS

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

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