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Gem Mountain Sapphire Mine

Producer in Granite county in Montana, United States with commodities Corundum, Gemstone
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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. Host and associated rocks
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Land status
  12. Ownership information
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10012518
MRDS ID D008178
Record type Site
Current site name Gem Mountain Sapphire Mine
Alternate or previous names Chaussee Sapphire Mine, American Sapphire Gem Mine

Geographic coordinates

Geographic coordinates: -113.60426, 46.276 (WGS84)
Location accuracy 1000(meters)
Relative position IN SAPPHIRE GULCH, NEAR ITS HEAD.

Site location context

Political divisions (FIPS codes)

Granite(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cornish Gulch(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)

Federal lands

Beaverhead-Deerlodge 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 Montana Granite

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 006N 016W 16 Montana

Comments on the location information

  • SAPPHIRE GULCH IS OFF OF W. FORK ROCK CREEK. INFO FROM LAND.ST :(1975)

Commodities

Commodity Importance
Corundum Primary
Gemstone Primary

Comments on the commodity information

  • THE SAPPHIRES ARE NATURALLY PALE, BUT CAN BE HEAT TREATED TO ACHIEVE A DEEPER BLUE COLOR.

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Alluvium
    Stratigraphic age (youngest) Holocene

Nearby scientific data

(1) -113.60426, 46.276
ListMap

Economic information

Economic information about the deposit and operations

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

Mining district

District name Rock Creek District

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner American Gem
    First year 1994

Comments on development

  • PREVIOUSLY OWNED AND OPERATED BY GEM MOUNTAIN SAPPHIRE, P.O. BOX 701, PHILIPSBURG, MT. 59856.

Reference information

Bibliographic references

  • Deposit

    MBMG BULL 115, P. 24.

  • Deposit

    THE NORTHERN MINER, 1994, AMERICAN GEM PRODUCING SAPPHIRES IN MONTANA: V. 80, NO. 30, P. 1, 10, 11.

General comments

Subject category Comment text
Deposit DURING 1992-1994, AMERICAN GEM ACQUIRED CONTROL OF MOST OF THE HISTORIC SAPPHIRE MINING AREAS IN MONTANA.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1982 Wise, Kristine K. (Elliott, James E.) U.S. Geological Survey
Updater 14-DEC-1994 Orris, Greta J. 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