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Cojade Mine

Producer in Larimer county in Colorado, United States with commodities Beryllium, Lithium, Niobium (Columbium), Tantalum
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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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10013870
MRDS ID D010404
Record type Site
Current site name Cojade Mine
Related records 10118208

Geographic coordinates

Geographic coordinates: -105.29253, 40.35498 (WGS84)
Elevation 2085
Location accuracy 500(meters)
Relative position 11.1 MILES S 84 E FROM ESTES PARK

Site location context

Political divisions (FIPS codes)

Larimer(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Pinewood Lake(quadrangle 1:24,000 scale)

Estes Park(quadrangle 1:100,000 scale)

Greeley(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Big Thompson(hydrologic unit)

South Platte(hydrologic accounting unit)

South Platte(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

ST(Federal land areas administered by ST)

Geographic areas

Country State County
United States Colorado Larimer

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 005N 071W 36 SE Colorado

Comments on the location information

  • ON WEST SIDE OF RATTLESNAKE PARK 0.5 MILE SW OF PINEWOOD LAKE. ELEV AND LAT-LONG GIVEN ARE FOR CENTER SE. ; INFO FROM LAND.ST :(1977)

Commodities

Commodity Importance
Beryllium Critical Primary
Lithium Critical Tertiary
Niobium (Columbium) Critical Tertiary
Tantalum Critical Tertiary

Materials information

Materials Type of material
Amblygonite Ore
Beryl Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Tonalite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Rock unit name Pegmatite;Tonalite (Quartz Diorite)
    Rock description Pegmatite;Tonalite (Quartz Diorite)
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss
    Rock unit name Metasedimentary Rocks--Quartzofeldspathic Schist And Gneiss;Pegmatite
    Rock description Metasedimentary Rocks--Quartzofeldspathic Schist And Gneiss;Pegmatite

Nearby scientific data

(1) Ingleside Fm and Fountain Fm
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Front Range Uplift
Type of structure Local
Structure description Ne-Trending Fault

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Rattlesnake Park Area

Land status

Ownership category State

Comments on the workings information

  • 2 SMALL OPEN CUTS AND 2 BULLDOZED AREAS

Reference information

Bibliographic references

  • Deposit

    THURSTON, W.R., 1955, PEGMATITES OF THE CRYSTAL MOUNTAIN DISTRICT, LARIMER COUNTY, COLORADO: USGS BULL. 1011, 185 P., 13 PLS.

  • Deposit

    MEEVES, H.C., AND OTHERS, 1966, RECONNAISSANCE OF BERYLLIUM-BEARING PEGMATITE DEPOSITS IN SIX WESTERN STATES: USBM IC-8298, P. 30.

  • Deposit

    COLTON, R.B., 1978, GEOLOGIC MAP OF THE BOULDER-FORT COLLINS-GREELEY AREA, COLORADO: USGS MAP I-855-G.

  • Production

    DMEA RECORDS AND CONSERV. DIV. COMP. DATA (FROM ORIGINAL CRIB RECORD)

General comments

Subject category Comment text
Deposit CONCORDANT PEGMATITE IN GRANITIC GNEISS

Reporter information

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