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

Strang Pegmatite

Occurrence in Jefferson county in Colorado, United States with commodities Feldspar, Quartz, Mica, REE
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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. Reporter information

Geologic information

Identification information

Deposit ID 10013727
MRDS ID D010184
Record type Site
Current site name Strang Pegmatite

Geographic coordinates

Geographic coordinates: -105.37281, 39.84277 (WGS84)
Elevation 2438
Relative position 9.9 MILES N 55 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)

Federal lands

LG(Federal land areas administered by LG)

Geographic areas

Country State County
United States Colorado Jefferson

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 002S 071W 30 SW OF SE Colorado

Comments on the location information

  • ON HILLSIDE SOUTH OF RALSTON CREEK 0.9 MILE SW OF RALSTON CREEK RANCH ; INFO FROM LAND.ST :(1975)

Commodities

Commodity Importance
Feldspar Primary
Quartz Primary
Mica Primary
REE Critical Secondary

Materials information

Materials Type of material
Microcline Ore
Muscovite Ore
Quartz Ore

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---Microcline-Quartz-Plagioclase-Biotite Gneiss Unit
    Rock description Idaho Springs Formation---Microcline-Quartz-Plagioclase-Biotite Gneiss Unit

Nearby scientific data

(1) -105.37281, 39.84277
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Front Range Uplift, Denver Basin
Type of structure Local
Structure description Hurricane Hill Fault System, Unnamed Syncline, Idaho Springs-Ralston Shear Zone

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

Reference information

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.

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.