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Troy Sillimanite Co. Prospect

Occurrence in Latah county in Idaho, United States with commodities Kyanite, Copper
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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. Economic information about the deposit and operations
  11. Mining district
  12. Land status
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10072134
MRDS ID W015996
Record type Site
Current site name Troy Sillimanite Co. Prospect
Alternate or previous names Olson
Related records 10266516

Geographic coordinates

Geographic coordinates: -116.63325, 46.73153 (WGS84)
Elevation 792
Relative position 6.5 MI E OF TROY

Site location context

Political divisions (FIPS codes)

Latah(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Little Bear Ridge(quadrangle 1:24,000 scale)

Potlatch(quadrangle 1:100,000 scale)

Pullman(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Clearwater(hydrologic unit)

Clearwater(hydrologic accounting unit)

Lower Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Idaho Latah

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 039N 002W 07 Idaho

Comments on the location information

  • ON N SLOPE OF BIG BEAR CREEK CANYON; ADJOINS COPPER CHIEF MINE

Commodities

Commodity Importance
Kyanite Tertiary
Copper Tertiary

Materials information

Materials Type of material
Kyanite Ore
Malachite Ore
Sillimanite Ore

Analytical data

Result TRACE TO 18% SILLIMANITE IN CHIP AND GRAB SAMPLES

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Rock unit name Pegmatite
    Rock description Pegmatite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Schist > Mica Schist
    Rock unit name Belt Supergroup
    Rock description Belt Supergroup-Mica Schist And Gneiss
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss

Nearby scientific data

(1) -116.63325, 46.73153
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Both
Deposit size Small
Significant No

Mining district

District name Mica Mountain (Avon) District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Olson

Comments on the workings information

  • OLD TUNNEL DRIVEN FOR COPPER EXPOSED SILLIMANITE ON W BORDER OF THIS AREA.

Reference information

Bibliographic references

  • Deposit

    HUBBARD, C. R., 1957, MINERAL RESOURCES OF LATAH COUNTY: IDAHO BUREAU OF MINES AND GEOLOGY COUNTY REPT. 2, 29 P.

  • Deposit

    FORRESTER, J. D., 1942, A SILLIMANITE DEPOSIT NEAR TROY, LATAH COUNTY, IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 59, 10 P.

  • Deposit

    1941 GEOCHEM IDAHO BUREAU OF MINES & GEOLOGY PAMPHLET 59

  • Deposit

    1957 OTHER IDAHO BUREAU OF MINES AND GEOLOGY CO. REPT. 2

General comments

Subject category Comment text
Deposit DEPOSIT COVERS .5 SQ MI

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1974 Miller, Pat J. U.S. Geological Survey

Beyond USGS

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

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