Troy Sillimanite Occurrences

Occurrence in Latah county in Idaho, United States with commodity Kyanite
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. Ore body information
  11. Economic information about the deposit and operations
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10093397
MRDS ID W007476
Record type Site
Current site name Troy Sillimanite Occurrences

Geographic coordinates

Geographic coordinates: -116.6177, 46.71653 (WGS84)

Site location context

Political divisions (FIPS codes)

Latah(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Texas 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
039N 002W 08 Idaho

Comments on the location information

  • NO PUBLISHED TOPO MAP: MAPPING PLANNED

Commodities

Commodity Importance
Kyanite Tertiary

Materials information

Materials Type of material
Sillimanite Ore

Analytical data

Result ABOUT 8% SILLIMANITE AVERAGE CONTENT

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss
    Rock unit name Belt Supergroup
    Rock description Belt Supergroup-Sillimanite-Biotite-Quartz Schist And Gneiss
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -116.6177, 46.71653

Economic information

Ore body information

  • General form LENS, TABULAR

Comments on the geologic information

  • SILLIMANITE - BIOTITE - QUARTZ SCHISTS AND GNEISSES. ABOUT 8% SILLIMANITE AVERAGE CONTENT

Economic information about the deposit and operations

Development status Occurrence
Commodity type Non-metallic
Deposit size Small
Significant No

Comments on the workings information

  • DEPOSIT TOO LOW GRADE FOR SPECIAL STUDY

Comments on development

  • SAMPLING AND BENEFICATION TESTS BY BUREAU OF MINES ABOUT 1946

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1959 Espenshade, Gilbert H. U.S. Geological Survey

Beyond USGS

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