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  3. Mineral Resource Data System (MRDS)

Crystal Group

Occurrence in Shasta county in California, United States with commodity Copper
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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. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10033817
MRDS ID M020465
Record type Site
Current site name Crystal Group

Geographic coordinates

Geographic coordinates: -122.51971, 40.73207 (WGS84)
Elevation 701
Relative position 4 MILES N.W. OF SHASTA DAM

Site location context

Political divisions (FIPS codes)

Shasta(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Whiskeytown(quadrangle 1:24,000 scale)

Redding(quadrangle 1:100,000 scale)

Redding(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Sacramento Headwaters(hydrologic unit)

Upper Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management CA)

Bureau of Land Management CA BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Shasta-Trinity National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States California Shasta

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 033N 006W 11 California

Commodities

Commodity Importance
Copper Tertiary

Comments on the commodity information

  • PYRITE FOUND AS BANDS IN RHYOLITE, SILICIFIED RHYOLITE IN DUMP CONTAIN 50 % DISSEMINATED PYRITE.

Materials information

Materials Type of material
Pyrite Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -122.51971, 40.73207
ListMap

Economic information

Ore body information

  • General form LENTICULAR

Comments on the geologic information

  • GEOL.DESC: PROSPECT OCCURS IN A FLOW OF PORPHYRITIC RHYOLITE. FLOW SURROUNDED BY NONPORPHYRITIC RHYOLITE. MOST OF THE ROCKS ARE MASSIVE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mining district

District name West Shasta Copper-Zinc

Workings at the site

  • Type of workings Underground
    Length 60.96M

Comments on the workings information

  • TWENTY-THREE CLAIMS.

Reference information

General comments

Subject category Comment text
Deposit SMALL LENSES OF GOSSAN ARE PROMINENT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1978 Fraticelli, L. A. (Albers, J.) U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative California resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.