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  3. Mineral Resource Data System (MRDS)

Magna Mine

Producer in Pinal county in Arizona, United States with commodities Copper, Lead, Molybdenum
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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. 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. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10048310
MRDS ID M899875
Record type Site
Current site name Magna Mine
Alternate or previous names Magma Chief, Lucky Boy, Jewell

Geographic coordinates

Geographic coordinates: -110.47874, 32.72704 (WGS84)
Elevation 1280
Relative position SE SIDE OF SCANLON WASH, 1 MI NE OF SOMBRERO BUTTE

Site location context

Political divisions (FIPS codes)

Pinal(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Rhodes Peak(quadrangle 1:24,000 scale)

Mammoth(quadrangle 1:100,000 scale)

Tucson(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower San Pedro(hydrologic unit)

San Pedro-Willcox(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Geographic areas

Country State County
United States Arizona Pinal

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 008S 018E 23 NW Arizona

Comments on the location information

  • 5 ADITS SHOWN ON RHODES PEAK QUAD. CLAIMS EXTEND NORTH INTO SECTION 14. ; INFO FROM LAND.ST :(1979)

Commodities

Commodity Importance
Copper Primary
Lead Secondary
Molybdenum Tertiary

Materials information

Materials Type of material
Copper Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Paleocene
    Stratigraphic age (youngest) Paleocene
    Stratigraphic age (youngest) Paleocene
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Copper Creek Grandiorite
    Rock description Copper Creek Grandiorite
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Glory Hole Volcanics
    Rock description Glory Hole Volcanics

Nearby scientific data

(1) -110.47874, 32.72704
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Short E-W Trending Faults And Med. Length Ene Faults, Steep Dip
Type of structure Local
Structure description Small Faults N 10 W Orientation, Near Breccia

Controls for ore emplacement

  • Breccia Pipe In Fracture Zone Or Intersection Of Zones, Near Granodiorite

Comments on the geologic information

  • DOWNWARD PERCOLATION OF SOLUTIONS THROUGH FRACTURE ZONES MAY HAVE CAUSED BRECCIATION AT TIME OF MINERALIZATION.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1915
Year of last production 1958

Mining district

District name Bunker Hill District

Land status

Ownership category BLM Administrative Area

Comments on the production information

  • PRODUCTION PROBABLY INCLUDED UNDER MAGMA CHIEF ON ABGMT-USBM FILE DATA

Workings at the site

  • Type of workings Underground
    Overall depth 91.44M

Comments on the workings information

  • 300 FT SHAFT, 120 FT TUNNEL TO CONNECT TO SURFACE.

Comments on development

  • ORIGINALLY DEVELOPED BY JEWELL + CORBETT IN 1915, TAKEN OVER BY MAGMA CHIEF COPPER IN 1920.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit 6 INCH VEIN ON 300 FT LEVEL

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1982 Gest, Don E. Arizona Bureau of Geology and Mineral Technology

Beyond USGS

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

External references

Maps centered on this site

Authoritative Arizona resources

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