Gem Mine

Past Producer in Granite county in Montana, United States with commodities Silver, Manganese, Gold, Copper, Lead, Phosphorus-Phosphates, Arsenic, Antimony
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. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10014287
MRDS ID D010994
Record type Site
Current site name Gem Mine

Geographic coordinates

Geographic coordinates: -113.26759, 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.

Commodities

Commodity Importance
Silver Primary
Manganese Critical Primary
Gold Secondary
Copper Secondary
Lead Secondary
Phosphorus-Phosphates Tertiary
Arsenic Critical Tertiary
Antimony Critical Tertiary

Materials information

Materials Type of material
Galena Ore
Psilomelane Ore
Pyrolusite Ore
Sphalerite Ore
Tennantite Ore
Calcite Gangue
Quartz Gangue
Rhodochrosite Gangue

Alteration

  • (Local) Oxidized

Analytical data

Result 40% MN, 18% S102, VERY LITTLE 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 Cambrian
    Stratigraphic age (youngest) Late Cretaceous
  • 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) -113.26759, 46.32906

Economic information

Geologic structures

Type of structure Regional
Structure description Philipsburg Batholith

Ore body information

  • General form TABULAR
    Strike EAST
    Dip 80 S

Controls for ore emplacement

  • Near Granite Contact

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Small
Significant No

Mining district

District name Philipsburg (Granite-Flint Creek) District

Ownership information

  • Type Operator
    Owner Western Ore And Mining Co.

Comments on the production information

  • $10,000 AG (1906)

Comments on the workings information

  • SEVERAL SHALLOW SHAFTS AND PITS.

Comments on development

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

Reference information

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 N OR FOOTWALL SIDE AND EXTENDS INTO THE TROUT CLAIM. BOTH PITCH STEEPLY NE, PARRELL WITH THE DIP OF THE LIMESTONE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1983 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.