1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Vermiculite Mine

Past Producer in Fremont county in Colorado, United States with commodities Vermiculite, Niobium (Columbium), Thorium, REE
Map
XML
JSON
KML
B
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. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Land status
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10013422
MRDS ID D009705
Record type Site
Current site name Vermiculite Mine
Related records 10287939

Geographic coordinates

Point of reference Pit
Geographic coordinates: -105.54641, 38.26807 (WGS84)
Elevation 2423
Relative position southe side of disturbed area; 3.6 MILES N 87 E OF HILLSIDE

Site location context

Political divisions (FIPS codes)

Fremont(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hillside(quadrangle 1:24,000 scale)

Canon City(quadrangle 1:100,000 scale)

Pueblo(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Arkansas Headwaters(hydrologic unit)

Upper Arkansas(hydrologic accounting unit)

Upper Arkansas(hydrologic subregion)

Arkansas-White-Red(hydrologic region)

Geographic areas

Country State County
United States Colorado Fremont

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 020S 073E 33 CENTER OF W2 OF SE Colorado

Comments on the location information

  • IN GEM PARK, SOUTH OF GEM MOUNTAIN AND WEST OF DEMOCRATIC MOUNTAIN ; INFO FROM LAND.ST :(1976)

Commodities

Commodity Importance
Vermiculite Primary
Niobium (Columbium) Critical Secondary
Thorium Tertiary
REE Critical Tertiary

Comments on the commodity information

  • DIKELETS OF SERPENTINE CUTTING METASOMATIZED AREA CONTAIN NIOBIUM MINERALS; GRADE OF NIOBIUM MINERALS REACHES ECONOMIC WHERE DIKELETS CLUSTER, CARBONATITE CONCENTRATES

Materials information

Materials Type of material
Columbite Ore
Monazite Ore
Perovskite Ore
Pyrochlore Ore
Thorianite Ore
Vermiculite Ore

Alteration

  • (Local) Fenitization
  • (Local) Dolomite

Analytical data

Result NB (K. T. .002% TO G. T. 1.0%)
Result AVG NB 0.096%

Mineral occurrence model information

Model code 27
USGS model code 11
Deposit model name Alkaline complexes

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Gabbro
    Stratigraphic age (youngest) Late Cambrian
  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Pyroxenite
    Rock unit name Pyroxenite, Gabbro Of The Gem Park Complex;Carbonatites Of The Gem Park Complex
    Rock description Pyroxenite, Gabbro Of The Gem Park Complex;Carbonatites Of The Gem Park Complex
  • Host or associated Associated
    Rock type Plutonic Rock > Porphyry > Lamprophyre
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Gabbro
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Pyroxenite

Nearby scientific data

Pit (1) -105.54641, 38.26807
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Central Cordillera (Southern Rocky Mountains)
Type of structure Local
Structure description Gem Park Complex

Ore body information

  • Thickness 12.19M
    Length 274.32M
    Width 259.08M
    Depth to top 0M

Controls for ore emplacement

  • Carbonatites, Faults, Fractures, Fenitization

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Commodity type Both
Deposit size Small
Significant No
Year of last production 1945

Mining district

District name Gem Park Area

Land status

Ownership category Private

Comments on the production information

  • PRIOR TO WORLD WAR II PRODUCTION (COMBINED WITH NILES MINE) TOTALLED LESS THAN 3000 TONS VERMICULITE

Workings at the site

  • Type of workings Surface
    Area 6.703HA
    Length 685.8M
    Overall depth 12.19M
    Overall length 274.32M
    Overall width 259.08M

Comments on the workings information

  • ONE LARGE, LONG PIT WITH ABOUT 5 SMALLER PITS NEARBY, LARGE DUMP

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit PARKER AND SHARP BELIEVE A LARGE CARBONATITE BODY (POTENTIALLY ECONOMIC FOR NIOBIUM) MAY EXIST AT UNKNOWN DEPTH

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1982 Collins, Donna B. Colorado Geological Survey

Beyond USGS

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

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.