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  3. Mineral Resource Data System (MRDS)

Little Abner Pegmatite

Past Producer in Jefferson county in Colorado, United States with commodities Beryllium, REE, Feldspar
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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. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10101838
MRDS ID D010195
Record type Site
Current site name Little Abner Pegmatite
Related records 10239168

Geographic coordinates

Geographic coordinates: -105.34919, 39.76582 (WGS84)
Elevation 2332
Relative position 6.5 MILES N 87 W FROM GOLDEN

Site location context

Political divisions (FIPS codes)

Jefferson(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ralston Buttes(quadrangle 1:24,000 scale)

Denver West(quadrangle 1:100,000 scale)

Denver(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Clear(hydrologic unit)

South Platte(hydrologic accounting unit)

South Platte(hydrologic subregion)

Missouri(hydrologic region)

Geographic areas

Country State County
United States Colorado Jefferson

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 003S 071W 28 W2 OF NW Colorado

Comments on the location information

  • ABOVE UNNAMED TRIBUTARY OF ELK CREEK 2.3 MILES NW OF CONFLUENCE WITH CLEAR CREEK ; INFO FROM LAND.ST :(1975)

Commodities

Commodity Importance
Beryllium Critical Primary
REE Critical Primary
Feldspar Primary

Materials information

Materials Type of material
Beryl Ore
Microcline Ore
Garnet Gangue
Monazite Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Rock unit name Granitic Pegmatite
    Rock description Granitic Pegmatite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss
    Rock unit name Idaho Springs Formation---Hornblende Gneiss Unit
    Rock description Idaho Springs Formation---Hornblende Gneiss Unit
  • Host or associated Host
    Rock type Metamorphic Rock > Amphibolite

Nearby scientific data

(1) -105.34919, 39.76582
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Front Range Uplift, Denver Basin
Type of structure Local
Structure description Junction Ranch Fault System, Unnamed Anticline, Unnamed Overturned Anticline

Ore body information

  • General form TABULAR

Economic information about the deposit and operations

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

Mining district

District name Clear Creek Pegmatite Province

Land status

Ownership category Private

Comments on the production information

  • PRESUMED ANNUAL PRODUCTION, YEARS UNKNOWN

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit DUPLICATE D001819 DELETED ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-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.