Trumbull Tungsten, Topaz, and Sulfide Mine

Past Producer in Fairfield county in Connecticut, United States with commodities Tungsten, Feldspar, Quartz, Gemstone
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10068214
MRDS ID W001163
Record type Site
Current site name Trumbull Tungsten, Topaz, and Sulfide Mine
Alternate or previous names Charles Lane of Trumbull
Related records 10264471

Geographic coordinates

Geographic coordinates: -73.22554, 41.28999 (WGS84)
Elevation 104
Relative position 1.5 MILE NORTH OF CENTER OF LONG HILL.

Site location context

Political divisions (FIPS codes)

Fairfield(county)

Connecticut(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Long Hill(quadrangle 1:24,000 scale)

Bridgeport(quadrangle 1:100,000 scale)

Hartford(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Saugatuck(hydrologic unit)

Connecticut Coastal(hydrologic accounting unit)

Connecticut Coastal(hydrologic subregion)

New England(hydrologic region)

Geographic areas

Country State County
United States Connecticut Fairfield

Comments on the location information

  • Lower Mine Working In Valley of Poquonock River; Upper Mine Working 1200 Feet Due North.
  • LOWER MINE WORKING IN VALLEY OF POQUONOCK RIVER; UPPER MINE WORKING 1200 FEET DUE NORTH.

Commodities

Commodity Importance
Tungsten Critical Primary
Feldspar Primary
Quartz Primary
Gemstone Secondary

Comments on the commodity information

  • Mineral Suites Differ According To Particular Vein Quartz Which Appear To Be of Different Ages Or Metamorphic Events.
  • MINERAL SUITES DIFFER ACCORDING TO PARTICULAR VEIN QUARTZ WHICH APPEAR TO BE OF DIFFERENT AGES OR METAMORPHIC EVENTS.

Materials information

Materials Type of material
Sphalerite Ore
Galena Ore
Fluorite Ore
Marcasite Ore
Chalcopyrite Ore
Pyrite Ore
Limestone Ore
Quartz Ore
Feldspar Ore
Scheelite Ore
Wolframite Ore
Bismuth Ore
Barite Ore
Arsenopyrite Ore
Topaz Ore

Alteration

  • (Local) Silicification

Analytical data

Result ONE TUNGSTEN ORE SAMPLE JOB NO. 3336, TAG NO. 196 IN USGS CHEM FILES, SUBMITTED BY R. WEEKS, GIVES IN PERCENT FE 2, MG 0.5, CA 2, TI 0.07
Result AND IN PPM'S BA 150, BE 70, BI 10, CO 10, CU 150, MN 700, NI 10, PB 10, SC 5, SN 10, SR 150, V 15, W 200, ZR 15
Result LOWER LIMIT DETECTION FOR B, CR, Y
Result NOT DETECTED ARE AG, AS, AU, CD, LA, MO, NB, SB, AND ZN.

Mineral occurrence model information

Model code 46
USGS model code 15a
Deposit model name W veins

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
    Stratigraphic age (youngest) Late Triassic
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite

Nearby scientific data

(1) -73.22554, 41.28999

Economic information

Ore body information

  • General form IRREGULAR, ALONG FORMATIONAL CONTACT
    Strike N 35 DEG EAST
    Dip 20 DEG. EAST
    Plunge SOUTH
    Plunge direction SOUTH
    Thickness 1.52M
    Depth to bottom 1.52M

Comments on the geologic information

  • Major.Units: Collinsville and the Straits Schist ; Geol.Desc: Bulk of Collinsville Highly Metamorphosed Tuffs and Pyroclastics With Numerous Thick Amphibolite, Marble, and Quartzite Layers Interbedded In Uppermost Part of Section; Overlain By the Strait
  • MAJOR.UNITS: COLLINSVILLE AND THE STRAITS SCHIST ; GEOL.DESC: BULK OF COLLINSVILLE HIGHLY METAMORPHOSED TUFFS AND PYROCLASTICS WITH NUMEROUS THICK AMPHIBOLITE, MARBLE, AND QUARTZITE LAYERS INTERBEDDED IN UPPERMOST PART OF SECTION; OVERLAIN BY THE STRAIT SCHIST FORMATION OF HIGHLY METAMORPHOSED CLAY RICH SHALES AND SOME AMPHIBOLITES AND MARBLE. ; REG.COM: VOLCANICS AND CLAYS

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Significant No
Discovery year 1837
Discoverer Charles Lane Of Trumbull And Not By Mr. Lane Of Monroe.
Year of first production 1897

Mining district

District name Trumbull

Comments on the production information

  • ALL MINERAL VENTURES APPEAR TO HAVE FAILED.

Comments on the reserve resource information

  • FIGURES LACKING. PROBABLY ONLY SMALL AMOUNT OF HIGH GRADE TUNGSTEN ORE AVAILABLE FROM WIDE SPREAD THIN SULFIDE BEARING VEIN QUARTZ; AREA NOW TUNGSTEN MINE TOWN PARK.

Comments on the workings information

  • Information Lacking On Development Work.
  • INFORMATION LACKING ON DEVELOPMENT WORK.

Comments on development

  • PROPERTY CHECKED NUMEROUS TIMES BY PRIVATE MINING CONCERNS. ; TOTAL$: US ; ECON.COM: LOW GRADE ORE FOR METALS; PROBABLY ALSO FOR FELDSPAR PEGMATITE; PROBABLY WAS REMOTE FOR LIME MANUFACTURE.

Reference information

Bibliographic references

  • Deposit

    USGS, GEOCHEM. ANALYSES FILES, SAMPLE CONTROL, JOB NO. HM 3336, TAG NO. 196, SUBMITTED BY R. WEEKS

  • Deposit

    1901 GEOLMAP HOBBS, W. H., MINE AREA MAP AT ABOUT 1:3600 SHOWS MINE WORKINGS AND MILL SITES, GEOLOGY, TOPAZ AND QUARTZ VEINS, AND NOTATIONS OF MINERAL SUITE OCCURRENCES.

  • Deposit

    1968 GEOLMAP CROWLEY, W. P. QUAD MAP AT 1:24000 LOCATES LOWER AND UPPER MINE WORKINGS BY SYMBOL.

  • Production

    HOBBS, 1901

  • Deposit

    Crowley, W.P., 1968, "The Bedrock Geology Of The Long Hill And Bridgeport Quadrangles, Ct", State Geological And Natural History Survey Of Ct Quadrangle Report Qr-24, P. 70 -71

  • Deposit

    Hess, F.L., 1917, "Tungsten Minerals And Deposits", USGS Bull. 652, P. 36

  • Deposit

    Shannon, E.V., 1921, "Some Minerals From The Old Tungsten Mine At Long Hill In Trumbull, Ct", Proceedings Of The U.S. National Museum, V. 58, P 469-482S. National Museum, V. 58, P 469-482

  • Deposit

    Hobbs, W.H., 1902, "The Old Tungsten Mine At Trumbull, Ct", Usgs, 22nd Annual Report Of The Survey, 1900-1901, Part Ii - Ore Deposits, P. 7 - 22

  • Deposit

    Schairer, J.F., 1931, "Minerals Of Connecticut", State Geological And Natural History Survey Of Ct Bulletin No. 51, 121 P.

  • Deposit

    Ryerson, K.H., 1968, "Rock Hound'S Guide To Connecticut", Pequot Handbook No. 3, The Pequot Press, P. 37-38

  • Deposit

    Usgs, Geochem. Analyses Files, Sample Control, Job No. Hm 3336, Tag No. 196, Submitted By R. Weeks.

  • Deposit

    Lemmon, D.M., And Tweto, O.L., 1962, Tungsten In The U.S., USGS Map, Mr-25.

General comments

Subject category Comment text
Deposit Mine Area Has Pegmatite Dikes and Numerous Different Metallic Suite Bearing Quartz Veins Probably Owing To Several Thermal Periods. 'The First Tungsten Ore Known To Have Been Mined In the United States Was Taken From This Deposit At Long Hill, 200 Ft. Eas
Deposit PROSPECTS IN AREA 1200 FEET LONG NORTH TO SOUTH, 1100 FEET WIDE EAST TO WEST. QUARTZ AND TUNGSTEN REPLACEMENT ALONG CONTACT OF MARBLE BED, 35-45 FT THICK, AND AMPHIBOLITE SHIST PROBABLY FROM MULTIPLE METAMORPHIC EVENTS, FELDSPAR FROM PEGMATITE INTRUSIVE DIKES, MARBLE FROM SEDIMENTATION.
Deposit MINE AREA HAS PEGMATITE DIKES AND NUMEROUS DIFFERENT METALLIC SUITE BEARING QUARTZ VEINS PROBABLY OWING TO SEVERAL THERMAL PERIODS. ; 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 W001112: Then Deleted Record W001112
Reporter 01-APR-1973 Elliott, James E. U.S. Geological Survey
Reporter 01-JUL-1972 D'Agostino, John P. U.S. Geological Survey
Updater 20-AUG-1997 Mchone, Nancy Connecticut Geological and Natural History Survey Added Model_Num And Model, Moved Point; Noted Duplicate Record Number W001112

Beyond USGS

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