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Microscopic Fluorite Occurrence No. Ek-029

Occurrence in Fairfield county in Connecticut, United States with commodity Fluorine-Fluorite
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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. Host and associated rocks
  8. Nearby scientific data
  9. Controls for ore emplacement
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10068188
MRDS ID W001135
Record type Site
Current site name Microscopic Fluorite Occurrence No. Ek-029

Geographic coordinates

Geographic coordinates: -73.20704, 41.26138 (WGS84)

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

Commodities

Commodity Importance
Fluorine-Fluorite Critical Tertiary

Comments on the commodity information

  • INFORMATION LACKING. FLUORITE COMMON IN MICROSCOPIC SIZE IN FELDSPATHIC GNEISSES. MAP SHOWS KNOWN OUTCROP AREA 2200 FEET LONG NORTH TO SOUTH, 1200 FEET WIDE EAST TO WEST, OF UNKNOWN THICKNESS

Materials information

Materials Type of material
Fluorite Ore
Apatite Gangue
Biotite Gangue
Garnet Gangue
Magnetite Gangue
Muscovite Gangue
Plagioclase Gangue
Quartz Gangue

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 Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -73.20704, 41.26138
ListMap

Economic information

Controls for ore emplacement

  • Metamorphosed Dacitic Tuffs

Comments on the geologic information

  • GEOL.DESC: BULK OF THE STRAITS SCHIST FORMATION CLAY RICH SHALES WITH SOME VOLCANIC AND LIMESTONE LAYERS.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Non-metallic
Significant No

Mining district

District name Trumbull

Comments on the reserve resource information

  • INFORMATION LACKING. VERY MINOR AMOUNTS OF FLUORITE PRESENT IN LARGE VOLUME OF ROCK.

Comments on development

  • TOTAL$: US

Reference information

Bibliographic references

  • Deposit

    CROWLEY, W. P., 1968, "BEDROCK GEOL. LONG HILL QUAD.", CONN. GEOLOGICAL SURVEY, QUAD REPORT NO. 24, MAP, TEXT, PG. 53, 54

  • Reserve-Resource

    CROWLEY, 1968.

General comments

Subject category Comment text
Deposit CROWLEY'S MAP AT 1:125000 LOCATES OCCURRENCE BY SYMBOL. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-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.

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