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Gem Mine

Past Producer in Granite county in Montana, United States with commodities Silver, Manganese, Copper, Lead, Zinc, Arsenic, Antimony
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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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Ownership information
  17. Production statistics
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10019605
MRDS ID DC10927
Record type Site
Current site name Gem Mine
Alternate or previous names Part of Trout Group

Geographic coordinates

Geographic coordinates: -113.27453, 46.32906 (WGS84)
Location accuracy 100(meters)
Relative position 2.1 KM ESE OF PHILIPSBURG.

Site location context

Political divisions (FIPS codes)

Granite(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Philipsburg(quadrangle 1:24,000 scale)

Philipsburg(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Flint-Rock(hydrologic unit)

Pend Oreille(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Montana Granite

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 007N 013W 30 Montana

Comments on the location information

  • SIDE LINES THE TROUT CLAIM ON THE S SIDE.; PREVIOUS QUAD DESIGNATION = LETHBRIDGE 1:250000

Commodities

Commodity Importance
Silver Primary
Manganese Critical Primary
Copper Secondary
Lead Secondary
Zinc Critical Secondary
Arsenic Critical Tertiary
Antimony Critical Tertiary

Materials information

Materials Type of material
Galena Ore
Proustite Ore
Psilomelane Ore
Pyrolusite Ore
Sphalerite Ore
Tetrahedrite Ore
Calcite Gangue
Dolomite Gangue
Quartz Gangue
Rhodochrosite Gangue

Alteration

  • (Local) Oxidized

Analytical data

Result 40% MN, 18% SI, VERY LITTE FE AND P.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Philipsburg Batholith
    Rock description Philipsburg Batholith
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cambrian
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Marble
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Red Lion Formation;Hasmark Formation
    Rock description Red Lion Formation;Hasmark Formation

Nearby scientific data

(1) -113.27453, 46.32906
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Philipsburg Batholith
Type of structure Local
Structure description Philipsburg Anticline, Philipsburg Overthrust

Ore body information

  • General form TABULAR
    Strike E
    Dip 80 S

Controls for ore emplacement

  • Near Granite Contact

Comments on the geologic information

  • HASMARK IS MOST FAVORABLE HOST FOR MANGANESE DEPOSITS. TABULAR MANGANESE BODIES MINED FROM SILVER HILL FM. BY WEST ALGONQUIN ARE AS MUCH AS 50 M ALONG STRIKE AND 15 M THICK

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant Yes

Mining district

District name Philipsburg (Granite-Flint Creek) District

Ownership information

  • Type Operator
    Owner Western Ore And Mining Co.

Production statistics

  • Year 1962
    Period 1860-1962
    Material ore
    Ore mined 551155.5mt
    Accuracy Accurate

Comments on the production information

  • $10,000 AG (1906) USGS BULL 725, P. 163.

Comments on the workings information

  • SEVERAL SHALLOW SHAFTS AND PITS.
  • MINE DEVELOPED BY A DEEP TWO-COMPARTMENT SHAFT NEAR FROST CREEK, AN OPEN CUT, AND SEVERAL TUNNELS TO THE WEST CALLED THE WEST ALGONQUIN MINE. FROM ABOUT 1929 TO 1960 THE TROUT AND ALGONQUIN WERE OPERATED TOGETHER. PRODUCTION FROM THE ALGONQUIN VEIN IS INCLUDED IN THE PRODUCTION CREDITED TO THE TROUT MINE. SILVER MILL ON PROPERTY 1881-2. MN ORE MINED THROUGH A PIT 30-50 FT WIDE, 150 FT LONG AND AT LEAST 60 FT IN PITCH LENGTH

Comments on development

  • UNTIL 1908 A PRODUCER OF AG, 1917 REOPENED FOR MN.

Reference information

Comments on the other database information

  • RECORD NUMBER 242 IS A POTENTIAL DUPLICATE OF THIS RECORD

Bibliographic references

General comments

Subject category Comment text
Deposit ORE AND DEPOSITS RESEMBLE TROUT CLAIM BUT VEIN MUCH NARROWER. 2 IRREGULAR BODIES, ONE AJOINS THE GEM VEIN AND THE OTHER LIES ON THE NORTH OR FOOTWALL SIDE AND EXTENDS INTO THE TROUT CLAIM. BOTH PITCH STEEPLY NE, PARALLEL WITH THE DIP OF THE LIMESTONE.
Deposit Mergered data from:Deposit ID 10102039 (Little Gem)

Deposit ID 10101985 (Pocahontas)

Deposit ID 10270424 (Algonquin)

Deposit ID 10245558 (Trout)

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1974 Unknown U.S. Geological Survey
Updater 01-NOV-1980 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.

Maps centered on this site