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

Robinson Gulch Prospect

Occurrence in Jefferson county in Colorado, United States with commodities Feldspar, Mica, Beryllium
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. 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 10094626
MRDS ID D010187
Record type Site
Current site name Robinson Gulch Prospect
Related records 10159347

Geographic coordinates

Geographic coordinates: -105.34864, 39.7886 (WGS84)
Elevation 2362
Relative position 6.8 MILES N 73 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 16 SW Colorado

Comments on the location information

  • NEAR CONFLUENCE OF ROBINSON GULCH AND UY GULCH ; INFO FROM LAND.ST :(1975)

Commodities

Commodity Importance
Feldspar Primary
Mica Primary
Beryllium Critical Primary

Materials information

Materials Type of material
Chrysoberyl Ore
Muscovite Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Rock unit name Pegmatite
    Rock description Pegmatite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss
  • Host or associated Host
    Rock type Metamorphic Rock > Amphibolite
    Rock unit name Idaho Springs Formation---Interlayered Amphibolite And Biotite-Plagioclase-Quartz Gneiss;Pegmatite
    Rock description Idaho Springs Formation---Interlayered Amphibolite And Biotite-Plagioclase-Quartz Gneiss;Pegmatite

Nearby scientific data

(1) -105.34864, 39.7886
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 Zone

Ore body information

  • Length 9.14M
    Width 0.91M

Economic information about the deposit and operations

Development status Occurrence
Commodity type Both
Deposit size Small
Significant No

Mining district

District name Clear Creek Pegmatite Province

Land status

Ownership category Private

Comments on the workings information

  • OPEN CUTS

Reference information

General comments

Subject category Comment text
Deposit SMALL UNZONED PEGMATITE IN INTERLAYERED AMPHIBOLITE AND BIOTITE-PLAGIOCLASE-QUARTZ GNEISS. CHRYSOBERYL WAS FOUND BUT IN PLACE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-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.