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Vermiculite Mining Company Mine

Past Producer in Gunnison county in Colorado, United States with commodity Vermiculite
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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. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10087975
MRDS ID D011411
Record type Site
Current site name Vermiculite Mining Company Mine
Related records 10191256

Geographic coordinates

Geographic coordinates: -107.04618, 38.24056 (WGS84)
Elevation 2627
Location accuracy 1000(meters)
Relative position 21.7 MILES S 18 W FROM GUNNISON

Site location context

Political divisions (FIPS codes)

Gunnison(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Rudolph Hill(quadrangle 1:24,000 scale)

Montrose(quadrangle 1:100,000 scale)

Montrose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Gunnison(hydrologic unit)

Gunnison(hydrologic accounting unit)

Gunnison(hydrologic subregion)

Upper Colorado(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management CO)

Bureau of Land Management CO BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Colorado Gunnison

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 046N 002W 13 Colorado

Comments on the location information

  • EXACT LOCATION WITHIN SECTION IS UNCERTAIN BUT LIKELY IS NEAR ROAD BEAVER CREEK OR NORTH BEAVER CREEK. ELEV AND LAT-LONG GIVEN ARE FOR CENTER SEC. 13. ; INFO FROM LAND.ST :1976

Commodities

Commodity Importance
Vermiculite Primary

Materials information

Materials Type of material
Augite Gangue
Biotite Gangue
Magnetite Gangue

Alteration

  • (Local) Alteration Of Biotite And/Or Phlogopite To Vermiculite

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Pyroxenite
    Rock unit name Pyroxenite;Uncompahgrite;Ijolite;Carbonatite
    Rock description Pyroxenite;Uncompahgrite;Ijolite;Carbonatite
    Stratigraphic age (youngest) Late Cambrian
  • Host or associated Associated
    Rock type Plutonic Rock > Carbonatite, Intrusive
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Pyroxenite

Nearby scientific data

(1) -107.04618, 38.24056
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Gunnison Uplift, San Juan Volcanic Field
Type of structure Local
Structure description Iron Hill Alkalic Complex, Cimarron Fault, Powderhorn Stock

Economic information about the deposit and operations

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

Mining district

District name White Earth (Powderhorn) District

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Operator
    Owner Vermiculite Mining Co.
    Home office Minneapolis, MN
    First year 1943

Comments on the workings information

  • OPEN CUTS

Reference information

Bibliographic references

  • Deposit

    OLSON, J.C., 1974, GEOLOGIC MAP OF THE RUDOLPH HILL QUADRANGLE, GUNNISON, HINSDALE, AND SAGUACHE COUNTIES, COLORADO: USGS MAP GQ-1177.

  • Deposit

    GLOSSER, CLYDE, 1943, VERMICULITE FOR VICTORY: COLORADO MINING ASSOC. 1943 MINING YEARBOOK, P. 37, 67.

General comments

Subject category Comment text
Deposit ALONG SOUTH SIDE OF IRON HILL COMPLEX, PYROXENITE IS INTRUDED BY LARGE MASS OF UNCOMPAHGRITE AND TOWARD THE SE BY MASS OF IJOLITE. SWARMS OF CARBONATITE DIKES TREND GENERALLY EAST-WEST AND WNW-ESE PARALLEL TO LONG DIMENSION OF COMPLEX AND ALSO GENERALLY NW AND NNW-SSE IN RADIAL ORIENTATION WITH RESPECT TO MAIN CARBONATITE STOCK. VERMICULITE IS SPORADIC BUT LOCALLY ABUNDANT IN ALTERED PYROXENITE AS PODLIKE SEGREGATIONS AND DIKELIKE BODIES, RESULTING FROM WEATHERING OF BIOTITE OR PHLOGOPITE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1984 Schwochow, Stephen D. Colorado Geological Survey

Beyond USGS

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

External references

Maps centered on this site

Authoritative Colorado resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.