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Dumortierite Deposit

Past Producer in Jefferson county in Montana, United States with commodity Kyanite
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10019384
MRDS ID DC09905
Record type Site
Current site name Dumortierite Deposit

Geographic coordinates

Geographic coordinates: -112.31617, 46.36518 (WGS84)
Location accuracy 250(meters)
Relative position 3.5 KM NW OF JACK MOUNTAIN., 0.2 Km Fadius

Site location context

Political divisions (FIPS codes)

Jefferson(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Basin(quadrangle 1:24,000 scale)

Butte North(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Boulder(hydrologic unit)

Missouri Headwaters(hydrologic accounting unit)

Missouri Headwaters(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Beaverhead-Deerlodge National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Montana Jefferson

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 007N 006W 14 Montana

Comments on the location information

  • NW SIDE OF JACK CREEK. ; INFO FROM LAND.ST :(1954)

Commodities

Commodity Importance
Kyanite Primary

Comments on the commodity information

  • USED AS ROOFING AGGREGATE

Materials information

Materials Type of material
Dumortierite Ore
Quartz Gangue
Sericite Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Quartz Latite
    Rock unit name Elkhorn Mountain Volcanics
    Rock description Elkhorn Mountain Volcanics
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Quartz Latite

Nearby scientific data

(1) -112.31617, 46.36518
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Boulder Batholith

Ore body information

  • General form DISSEMINATED FIBROUS AGGREGATE, VEINLETS

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Deposit size Small
Significant No
Production years 1955

Mining district

District name Basin (Cataract, Comet) District

Land status

Ownership category National Forest

Comments on the production information

  • SMALL AMOUNT WAS SHIPPED IN 1955.

Reference information

Bibliographic references

  • Deposit

    MBMG BULL 16, P. 85.

  • Deposit

    USGS BULL 1151, P. 79, PL. 1.

  • Production

    MBMG BULL 16, P. 85

General comments

Subject category Comment text
Deposit DUMORTIERITE OCCURS IN AN EAST-TRENDING SHEAR ZONE AS DISSEMINATED FIBROUS AGGREGATES AND IN VEINLETS IN THE TUFF.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-74 Unknown U.S. Geological Survey
Updater 01-MAR-82 Wise, Kristine K. (Elliott, James E.) U.S. Geological Survey

Beyond USGS

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

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