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Spinelli Feldspar-Samarskite Pegmatite Prospect Quarry

Past Producer in Hartford county in Connecticut, United States with commodities Feldspar, Mica, Beryllium, Niobium (Columbium), Tantalum, REE
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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 10067702
MRDS ID W000503
Record type Site
Current site name Spinelli Feldspar-Samarskite Pegmatite Prospect Quarry

Geographic coordinates

Geographic coordinates: -72.55352, 41.68398 (WGS84)

Site location context

Political divisions (FIPS codes)

Hartford(county)

Connecticut(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Glastonbury(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 Hartford

Commodities

Commodity Importance
Feldspar Primary
Mica Primary
Beryllium Critical Primary
Niobium (Columbium) Critical Primary
Tantalum Critical Primary
REE Critical Primary

Comments on the commodity information

  • Opened 1912 For Feldspar. Pegmatite Dike Exposed 280 Feet Long, 30 To 40 Feet Wide, Strike N. 60 Deg. East, Dip Vertical. Small Body of Samarskite 14 Feet Long, 3 Feet Wide. Prospected World War Ii For Mica and Rare Earths, A Few Pounds Obtained. Owne
  • OPENED 1912 FOR FELDSPAR. PEGMATITE DIKE EXPOSED 280 FEET LONG, 30 TO 40 FEET WIDE, STRIKE N. 60 DEG. EAST, DIP VERTICAL. SMALL BODY OF SAMARSKITE 14 FEET LONG, 3 FEET WIDE. PROSPECTED WORLD WAR II FOR MICA AND RARE EARTHS, A FEW POUNDS OBTAINED. OWNERS VITO SPINELLI AND BOVO PEZZANA (1958). MICA IS GREEN, REEVED, FRACTURED; BOOKS LESS THAN 4 INCHES ACROSS, SCRAP MICA QUALITY ONLY.

Materials information

Materials Type of material
Feldspar Ore
Quartz Ore
Samarskite Ore
Muscovite Ore
Plagioclase Ore

Analytical data

Result BERYL 0.02%

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) Early Cambrian
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Plutonic Rock > Pegmatite

Nearby scientific data

(1) -72.55352, 41.68398
ListMap

Economic information

Ore body information

  • Strike N. 60 DEG. EAST
    Dip VERTICAL
    Length 85.34M
    Width 40M

Comments on the geologic information

  • Geol.Desc: Dike Has Small Quantities of Poor Quality Scrap Mica and Small Occurrence of Samarskite; Intrudes Glastonbury Granite Gneiss Massif.
  • GEOL.DESC: DIKE HAS SMALL QUANTITIES OF POOR QUALITY SCRAP MICA AND SMALL OCCURRENCE OF SAMARSKITE; INTRUDES GLASTONBURY GRANITE GNEISS MASSIF.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Significant No
Year of first production 1940
Production years 1912

Mining district

District name Glastonbury

Ownership information

  • Type Owner
    Owner Vito Spinelli And Pezzana.
    First year 1958

Comments on the production information

  • FIGURES LACKING BUT ONLY SMALL AMOUNTS OF FELDSPAR MINED. BERYL 0.02%, MOST METALS NOT DETECTED, SEE ASSAY PAGE 667, STUGARD, 1958. PRODUCED FELDSPAR CONCENTRATES.

Comments on the reserve resource information

  • FIGURES LACKING BUT ONLY SMALL QUANTITIES AVAILABLE FROM SMALL DEPOSIT.

Comments on development

  • TOTAL$: US

Reference information

Bibliographic references

  • Deposit

    CAMERON, E. N., 1954, "PEGMATITE INVEST. 1942-45, NEW ENGLAND", USGS, PP. 255, MAP, TEXT, PG. 302-305, MINE MAP, PG. 304

  • Production

    STUGARD, 1958

  • Deposit

    Cameron, E. N., And Others, 1954, "Pegmatite Invest. 1942-45, New England", Usgs, Pp. 255, Map, Text, Pg. 302-305, Mine Map, Pg. 304.

  • Deposit

    Stugard, F. Jr., 1958, "Pegmatites Of The Middletown Area Conn." USGS Bulletin 1042-Q, Plates 5 And 6Stugard, F. Jr., 1958, "Pegmatites Of The Middletown Area Conn." USGS Bulletin 1042-Q, Plates 5 And 6

General comments

Subject category Comment text
Deposit Stugard Map At 1:24000 Locates Pegmatite. Geochron Date On Page 651 Gives Pegmatite Age As 260 M. Y. Records In USGS File. ; Info.Src : 1 Pub Lit
Deposit STUGARD MAP AT 1:24000 LOCATES PEGMATITE. GEOCHRON DATE ON PAGE 651 GIVES PEGMATITE AGE AS 260 M. Y. RECORDS IN USGS FILE. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Editor 10-MAR-2003 Nicholson, S.W. U.S. Geological Survey Combined This Record With Information From Record D001835: Then Deleted Record D001835
Reporter 01-APR-1972 D'Agostino, Johnp. U.S. Geological Survey
Reporter 01-APR-1975 Parker, Raymond L. U.S. Geological Survey
Updater 21-AUG-1997 Mchone, Nancy Connecticut Geological and Natural History Survey Added Model_Num And Model; Moved Point; Noted Duplicate Record Number D001835

Beyond USGS

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

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