Comet and Black Eagle Mines

Past Producer in Cochise county in Arizona, United States with commodities Manganese, Silver, Lead
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. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10027129
MRDS ID M002184
Record type Site
Current site name Comet and Black Eagle Mines
Alternate or previous names Big Comet, Little Comet
Related records 10209418

Geographic coordinates

Geographic coordinates: -110.0626, 31.68513 (WGS84)
Relative position 2 MI. S. OF TOMBSTONE, ARIZ.

Site location context

Political divisions (FIPS codes)

Cochise(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Tombstone(quadrangle 1:24,000 scale)

Fort Huachuca(quadrangle 1:100,000 scale)

Nogales(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper San Pedro(hydrologic unit)

San Pedro-Willcox(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management AZ)

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

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Arizona Cochise

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 020S 022E 23 Arizona

Comments on the location information

  • INFO FROM LAND.ST :(1979)

Commodities

Commodity Importance
Manganese Critical Primary
Silver Primary
Lead Primary

Materials information

Materials Type of material
Lead Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Permian
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Naco Group Limestone
    Rock description Naco Group Limestone

Economic information

Geologic structures

Type of structure Local
Structure description Ne Of Ajax Hill Horst

Ore body information

  • General form VEIN-LIKE
    Plunge direction 70W
    Length 419.1M
    Width 3.05M

Controls for ore emplacement

  • Ne Fissure, Dike, Or Premineral Fault Cutting A Permeable Horizon. Fissure Vein Paralleling Fault Is Likely Ore Control

Comments on the geologic information

  • MINERALIZATION MANGANESE-SILVER OCCURRED AFTER IRON-LEAD-ZINC MINERALIZATION PHASE

Economic information about the deposit and operations

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

Mining district

District name Tombstone District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Old Glory Mining Co., Tombstone Consolidated Mines Co, Tombstone Development Co.

Comments on the production information

  • AT LEAST 10,000 TONS OF ORE PRODUCED FROM THE LATE 1800'S TO THE 1920'S.

Workings at the site

  • Type of workings Underground
    Length 914.4M
    Overall depth 121.92M

Comments on the workings information

  • 3 LEVELS WITH UPWARD STOPES FROM EACH. TOTAL LENGTH OF WORKINGS ESTIMATED

Comments on development

  • PRODUCTION LISTED UNDER THE TOMBSTONE GROUP

Reference information

Bibliographic references

  • Deposit

    USBM FILES.

  • Deposit

    USGS TM TOMBSTONE, & VICINITY, ARIZ. 1907.

  • Deposit

    USGS BULL. 710, 1920, P. 113, PL. 5.

  • Other Database

    CIMRI

  • Production

    KEITH, 1973, ARIZ. BUR. OF MINES BULL. 187.

General comments

Subject category Comment text
Deposit LARGELY OXIDIZED, VEIN-LIKE REPLACEMENT BODIES OF MANGANESE-SILVER ORE IN AND ALONG THE FOOTWALL OF A DIKE CUTTINGTHICK BEDDED LIMESTONE.
Deposit ADDITIONAL REFERENCES: NO.4. ARIZ. B. OF M. BULL. 143, 1938, PL. 3, 4 . KEITH, S.B., 1973, ARIZONA BUREAU OF MINES BULLETIN 187, P. 74. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1972 Gere, W. U.S. Geological Survey
Updater 01-NOV-1981 Rodriguez, Ignacio (Gest, Don E.) Arizona Bureau of Geology and Mineral Technology
Updater 01-MAY-1995 Orris, Greta J. U.S. Geological Survey

Beyond USGS

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

Authoritative Arizona resources

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