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Lewis Beryl Prospect

Occurrence in Larimer county in Colorado, United States with commodities Mica, Beryllium
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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. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10013819
MRDS ID D010332
Record type Site
Current site name Lewis Beryl Prospect
Related records 10288454

Geographic coordinates

Geographic coordinates: -105.38615, 40.48248 (WGS84)
Elevation 2890
Location accuracy 1000(meters)
Relative position 9.7 MILES N 41 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

Glen Haven(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

Arapaho and Roosevelt National Forests(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Colorado Larimer

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 006N 071W 18 Colorado

Comments on the location information

  • ON SOUTH SLOPE OF STORM MOUNTAIN ON W-PROJECTING RIDGE 4.6 MILES SE OF CRYSTAL MOUNTAIN. ELEV AND LAT-LONG GIVEN ARE FOR POSSIBLE EXCAVATION IN NE SE SEC. 18 (DETERMINED FROM AIRPHOTO EXAMINATION). ; INFO FROM LAND.ST :(1977)

Commodities

Commodity Importance
Mica Primary
Beryllium Critical Primary

Materials information

Materials Type of material
Beryl Ore
Muscovite Ore
Albite Gangue
Microcline Gangue

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 > Schist > Mica Schist
    Rock unit name Metasedimentary Rocks-Quartz-Mica Schist;Pegmatite
    Rock description Metasedimentary Rocks-Quartz-Mica Schist;Pegmatite

Nearby scientific data

(1) -105.38615, 40.48248
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Front Range Uplift
Type of structure Local
Structure description Thompson Canyon Fault, Mt Olympus Batholith, Ne-Trending Folds

Ore body information

  • General form OVOID
    Length 60.96M
    Width 45.72M

Economic information about the deposit and operations

Development status Occurrence
Commodity type Both
Deposit size Small
Significant No
Discovery year 1943
Discoverer Jack Lewis (Claimant)

Mining district

District name Crystal Mountain (Storm Mountain) Pegmatite District

Land status

Ownership category National Forest

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 3.05M

Comments on the workings information

  • TWO OPEN CUTS (15 X 3 X 2 FT AND 10 X 4 X 2 FT); 10-FT-DEEP SHAFT

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit ZONED PEGMATITE TRENDS EAST-WEST, DIPS 70 S, PROBABLY CONFORMABLE TO ENCLOSING SCHIST. WALL ZONE IS FINE-GRAINED QUARTZ-POTASH FELDSPAR-MUSCOVITE PEGMATITE CONTAINING NO BERYL. CORE IS COARSE-GRAINED K-FELDSPAR, QUARTZ, ALBITE, AND FINE-GRAINED AGGREGATES OF MUSCOVITE. BERYL FOUND AS EUHEDRAL RADIAL MASSES OF CRYSTALS ASSOCIATED WITH QUARTZ.

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.