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Black Diamond Group

Past Producer in Shasta county in California, United States with commodities Copper, Silver, Gold
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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. Controls for ore emplacement
  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. Reporter information

Geologic information

Identification information

Deposit ID 10077530
MRDS ID W025226
Record type Site
Current site name Black Diamond Group
Related records 10237604, 10116939

Geographic coordinates

Geographic coordinates: -122.30165, 40.74541 (WGS84)
Elevation 427
Relative position ABOUT 12 MILES NE OF REDDING

Site location context

Political divisions (FIPS codes)

Shasta(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

City of Shasta Lake(quadrangle 1:24,000 scale)

Redding(quadrangle 1:100,000 scale)

Redding(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

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 004W 02,03 California

Commodities

Commodity Importance
Copper Primary
Silver Secondary
Gold Secondary

Comments on the commodity information

  • MINERALIZATION OCCURS IN MASSES A FEW INCHES IN DIAMETER SCATTERED LOCALLY IN GANGUE OF GARNET AND HEDERBERGITE, AND SPARSELY DISSEMINATED IN ADJACENT LIMESTONE.

Materials information

Materials Type of material
Chalcopyrite Ore
Magnetite Ore
Pyrrhotite Ore
Garnet Gangue
Hedenbergite Gangue

Analytical data

Result 8 % CU

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -122.30165, 40.74541
ListMap

Economic information

Ore body information

  • General form IRREGULAR
    Strike NORTH
    Dip 65 W
    Thickness 3.66M

Controls for ore emplacement

  • Ore Along Contact Between Mc Cloud Limestone And Quartz - Augite Diorite.

Economic information about the deposit and operations

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

Mining district

District name East Shasta Copper - Zinc

Land status

Ownership category National Forest

Comments on the production information

  • ACTIVE PRIOR TO 1902

Workings at the site

  • Type of workings Underground
    Area 129.504HA
    Length 457.2M
    Overall depth 60.96M

Comments on the workings information

  • EXPLORED BY OPEN CUTS, SHORT ADITS, AND MAIN ADIT ABOUT 2,000 FT. LONG.

Reference information

Bibliographic references

  • Deposit

    AUBURY, L. E., 1902 , REGISTER OF MINES AND MINERALS NO. 10 - 12 , CALIF. MIN. BUR., PG. 8 .

  • Deposit

    LYDON, P. A. AND O'BRIEN, J. C., 1974 , MINES AND MINERAL RESOURCES OF SHASTA COUNTY, COUNTY REPORT 6 , CALIF. DIV. OF MINES AND GEOLOGY PG. 104 .

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-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.

External references

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.