1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Roberts Mica Prospect

Past Producer in Middlesex county in Connecticut, United States with commodities Feldspar, Mica
Map
XML
JSON
KML
C
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10068035
MRDS ID W000946
Record type Site
Current site name Roberts Mica Prospect
Related records 10143088

Geographic coordinates

Geographic coordinates: -72.62146, 41.49082 (WGS84)

Site location context

Political divisions (FIPS codes)

Middlesex(county)

Connecticut(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Haddam(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
Feldspar Primary
Mica Primary

Comments on the commodity information

  • PEGMATITE DIKE 200 FEET LONG, 100 FEET WIDE WITH STRIKE N. 10 DEG. EAST. MINOR SPORADIC MICA BOOK DISTRIBUTION.

Materials information

Materials Type of material
Muscovite Ore
Plagioclase Ore
Quartz Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Stratigraphic age (youngest) Late Permian
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss
  • Host or associated Host
    Rock type Plutonic Rock > Pegmatite

Nearby scientific data

(1) -72.62146, 41.49082
ListMap

Economic information

Ore body information

  • Length 60.96M
    Width 100M

Controls for ore emplacement

  • Pegmatite Dike

Comments on the geologic information

  • GEOL.DESC: NUMEROUS DIKE SWARMS OCCUR TO EAST NEAR CONN. RIVER. MOST DIKES OCCUR IN COLLINS HILL SCHIST FORMATION.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Significant No

Mining district

District name Haddam

Comments on the production information

  • LOW GRADE MICA DEPOSIT. PRODUCED MICA CONCENTRATES.

Comments on the reserve resource information

  • FIGURES LACKING BUT ONLY SMALL AMOUNTS OF MICA AVAILABLE FROM LOW GRADE DEPOSIT.

Comments on development

  • TOTAL$: US

Reference information

Bibliographic references

  • Deposit

    CAMERON, E. N., 1954, "PEGMATITE INVEST. 1942-45, NEW ENGLAND", USGS, PP. 255, PG. 21, 328

  • Production

    CAMERON, 1954

General comments

Subject category Comment text
Deposit ADDITIONAL UNPUB. REPORT IN USGS FILES. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1972 D'Agostino, John P. U.S. Geological Survey

Beyond USGS

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

Maps centered on this site