Standard Specularite Prospect

Prospect in Washington county in Idaho, United States with commodities Iron, Copper
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. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Reserves and resources
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10090086
MRDS ID W013011
MAS/MILS ID 0160870077
Record type Site
Current site name Standard Specularite Prospect
Alternate or previous names Siegwein

Geographic coordinates

Geographic coordinates: -117.031, 44.55126 (WGS84)
Elevation 1981
Relative position 20 MI. NORTH OF WEISER, IDAHO, AND 6 MI. EAST OF THE SNAKE RIVER

Site location context

Political divisions (FIPS codes)

Washington(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Monroe Butte(quadrangle 1:24,000 scale)

Baker City(quadrangle 1:100,000 scale)

Baker City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Brownlee Reservoir(hydrologic unit)

Middle Snake-Powder(hydrologic accounting unit)

Middle Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Payette 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 Idaho Washington

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 014N 006W 14 SESENW Idaho

Commodities

Commodity Importance
Iron Tertiary
Copper Tertiary

Comments on the commodity information

  • THE SPECULARITE IS FINE TO COARSE GRAINED

Materials information

Materials Type of material
Hematite Ore
Malachite Ore
Specularite Ore
Calcite Gangue
Garnet Gangue
Jasper Gangue
Quartz Gangue

Analytical data

Result TOTAL FE CONTENT IS 37 - 58%

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Quartz Diorite;Andesite;Basalt Dike;Seven Devils Group-Greenstones
    Rock description Quartz Diorite;Andesite;Basalt Dike;Seven Devils Group-Greenstones
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Late Jurassic
  • Host or associated Associated
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
    Rock unit name Seven Devils Group-Tactite
    Rock description Seven Devils Group-Tactite
  • Host or associated Host
    Rock type Metamorphic Rock > Skarn (Tactite)

Nearby scientific data

(1) -117.031, 44.55126

Economic information

Geologic structures

Type of structure Regional
Structure description High - Angle Faulting With Westward Tilting Of The Fault Blocks.
Type of structure Local
Structure description Andesite Flows Are In Fault Contact With Greenstone.

Ore body information

  • General form PODS OR LENSES
    Thickness 12.19M
    Length 45.72M
    Width 9.14M

Controls for ore emplacement

  • Metamorphic Rock - Granite Contact

Economic information about the deposit and operations

Operation type Underground
Development status Prospect
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1897

Mining district

District name Iron Mountain District

Land status

Ownership category National Forest
Area name Payette National Forest

Ownership information

  • Type Owner-Operator
    Owner Siegwein, John
    Home office Weiser, Id
    First year 1943

Reserves and resources

  • Type In-situ
    Estimate year 1947
    Commodity Subtype Grade units Group Importance Year
    Iron Fe 55 wt-pct Iron Trace 1947

Comments on the workings information

  • WORKINGS COMPOSED OF A FEW PITS AND ADITS.

Comments on development

  • ECON.COM: 33 MI FROM RAILHEAD AT WEISER

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit Discovery Year: LATE 1890'S
Deposit 3 ORE DEPOSITS, NORTH, SOUTH, AND BOULDER ORE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1976 Nakai, Terry L.; Miller, Pat U.S. Geological Survey
Reporter 28-MAR-1995 Winters, Dick U.S. Bureau of Mines

Beyond USGS

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