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Middletown Lead-Silver Mine

Past Producer in Middlesex county in Connecticut, United States with commodities Lead, Silver
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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. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10067768
MRDS ID W000603
Record type Site
Current site name Middletown Lead-Silver Mine
Related records 10167542

Geographic coordinates

Geographic coordinates: -72.61152, 41.55899 (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
Lead Primary
Silver Primary

Comments on the commodity information

  • Prospected Before 1776, Between 1852 To 1854 Shaft 120 Feet Deep On Vein Quartz 1.5 To 3 Feet Thick. Vein Dips 35 To 40 Deg. West; Trends North and Outcrops On Connecticut River Bank As Quartz Vein Bearing Sulfides 10 To 20 Inches Thick.
  • PROSPECTED BEFORE 1776, BETWEEN 1852 TO 1854 SHAFT 120 FEET DEEP ON VEIN QUARTZ 1.5 TO 3 FEET THICK. VEIN DIPS 35 TO 40 DEG. WEST; TRENDS NORTH AND OUTCROPS ON CONNECTICUT RIVER BANK AS QUARTZ VEIN BEARING SULFIDES 10 TO 20 INCHES THICK.

Materials information

Materials Type of material
Sphalerite Ore
Chalcopyrite Ore
Pyrite Ore
Galena Ore
Fluorite Ore
Barite Ore
Anglesite Ore
Hydrozincite Ore
Marcasite Ore

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Nearby scientific data

(1) -72.61152, 41.55899
ListMap

Economic information

Comments on the geologic information

  • Geol.Desc: Collins Hill Schist Formation May Be More Equivalent To Ordovician Brimfield Schist Formation Than To Siluro-Devonian Bolton Schist Formation. Vein Located In Breccia Zone of the Triassic Eastern Connecticut Valley Border Fault.
  • GEOL.DESC: COLLINS HILL SCHIST FORMATION MAY BE MORE EQUIVALENT TO ORDOVICIAN BRIMFIELD SCHIST FORMATION THAN TO SILURO-DEVONIAN BOLTON SCHIST FORMATION. VEIN LOCATED IN BRECCIA ZONE OF THE TRIASSIC EASTERN CONNECTICUT VALLEY BORDER FAULT.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No
Discovery year 1776
Production years BEFORE 1776, 1852 TO 1854

Mining district

District name Middletown

Comments on the production information

  • FIGURES LACKING BUT PROBABLY ONLY SMALL AMOUNTS MINED. REPORTEDLY 25 TO 75 OUNCES OF SILVER PER TON OF ROCK. SILVER FROM HIGH GRADE GALENA ORE.

Comments on the reserve resource information

  • FIGURES LACKING; PROBABLY ONLY SMALL AMOUNTS OF SULFIDES AVAILABLE FROM THIN MINERALIZED ZONE.

Comments on development

  • TOTAL$: US

Reference information

Bibliographic references

  • Deposit

    STUGARD, JR., F., 1958, "PEGMATITES MIDDLETOWN AREA, CONN.," USGS BULL., 1042-Q, MAP, TEXT, P. 672, 673

  • Production

    SHEPARD, 1837

  • Deposit

    Stugard, Jr., F., 1958, "Pegmatites Middletown Area, Conn.," USGS Bull., 1042-Q, Map, Text, Plate 5 And 6Stugard, Jr., F., 1958, "Pegmatites Middletown Area, Conn.," USGS Bull., 1042-Q, Map, Text, Plate 5 And 6

  • Deposit

    Harte, C.R., 1945, "Conn. Minor Metals And Her Minerals," Conn. Society Of Civil Engineers, 61st Annual Report, Pg. 147-148Harte, C.R., 1945, "Conn. Minor Metals And Her Minerals," Conn. Society Of Civil Engineers, 61st Annual Report, Pg. 147-148

  • Deposit

    Field, D.D., 1853, "Centennial Address With Historical Sketches Of Cromwell, Portland, Chatham, Middle Haddam, Middletown, And Its Parishes," W.B. Casey, Middletown, Conn., P. 159-161Field, D.D., 1853, "Centennial Address With Historical Sketches Of Cromwell, Portland, Chatham, Middle Haddam, Middletown, And Its Parishes," W.B. Casey, Middletown, Conn., P. 159-161

  • Deposit

    Percival, J.G., And Whitney, J.R., 1853, "By-Laws Of The Silver-Lead Mining Company, Middletown, Conn., Together With Geological Reports With Essays Of Ores, Etc." New York, S.S. Chattarton And Co., 24 P.Percival, J.G., And Whitney, J.R., 1853, "By-Laws Of The Silver-Lead Mining Company, Middletown, Conn., Together With Geological Reports With Essays Of Ores, Etc." New York, S.S. Chattarton And Co., 24 P.

  • Deposit

    Schairer, J. F., 1931, "Minerals Of Conn.", Conn. Geol. Survey", Bull. No. 51, Pg. 107Schairer, J. F., 1931, "Minerals Of Conn.", Conn. Geol. Survey", Bull. No. 51, Pg. 107

General comments

Subject category Comment text
Deposit Stugard Geol. Map At 1:24000; Mine Located By Symbol ; Info.Src : 1 Pub Lit
Deposit STUGARD GEOL. MAP AT 1:24000; MINE LOCATED BY SYMBOL ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1972 Windolph, John F. 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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