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  3. Mineral Resource Data System (MRDS)

Black Diamond Group

Producer in Pima county in Arizona, United States with commodity Manganese
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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. Production statistics
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10027150
MRDS ID M002282
Record type Site
Current site name Black Diamond Group
Related records 10283886, 10134970

Geographic coordinates

Geographic coordinates: -112.11322, 32.48566 (WGS84)
Elevation 640
Relative position 12 MILES NNW OF GU ACHI

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Drew Spring Well(quadrangle 1:24,000 scale)

Ajo(quadrangle 1:100,000 scale)

Ajo(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Santa Rosa Wash(hydrologic unit)

Santa Cruz(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

BIA(Federal land areas administered by BIA)

Geographic areas

Country State County
United States Arizona Pima

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 011S;011S 003E;002E 07;02 Arizona

Comments on the location information

  • WITHIN PAPAGO INDIAN RESERVATION, UNSURVEYED

Commodities

Commodity Importance
Manganese Critical Primary

Materials information

Materials Type of material
Psilomelane Ore

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Economic information

Ore body information

  • General form IRREGULAR WITHIN FAULT ZONE
    Strike N 40 W
    Dip 65 SW

Controls for ore emplacement

  • Shear Zone And Breccia Of Fault.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of last production 1955

Production statistics

  • Year 1955
    Accuracy Accurate
    Description Ap_Grade: ^16 % Mn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Manganese Manganese 16wt-pct

Workings at the site

  • Type of workings Surface/Underground
    Length 27.43M
    Overall length 6.1M

Reference information

Bibliographic references

  • Deposit

    FARNHAM, L. L., STEWART, L. A., AND DELONG, C. W., 1961 , MANGANESE DEPOSITS OF EASTERN ARIZONA: USBM IC 7990 , P. 114 - 15

  • Production

    USBM IC 7990 , P. 114 .

General comments

Subject category Comment text
Deposit REPLACEMENT AROUND BRECCIA

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1979 Johnson, Kris H. (Creasey, S.C.) 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 Arizona resources

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