1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Emerald Mine

Past Producer in Cochise county in Arizona, United States with commodities Silver, Lead, Zinc, Copper, Gold, Molybdenum
Map
XML
JSON
KML
B
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 10039571
MRDS ID M050352
Record type Site
Current site name Emerald Mine
Alternate or previous names Emerald and Silver Plume Mine Group, East Side, East Side #2
Related records 10282398

Geographic coordinates

Geographic coordinates: -110.06955, 31.68902 (WGS84)
Elevation 1463
Relative position 1.52 KM NE OF PEAK OF AJAX HILL IN TOMBSTONE HILLS

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)

Geographic areas

Country State County
United States Arizona Cochise

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 20S 22E 14 NW4 Arizona

Comments on the location information

  • SILVER PLUME SHAFT IS IN NE/4 OF NW/4 SEC 23, APPROX 50 FT S OF THE BOUNDARY BETWEEN SEC 14 AND 23, 1000 FT SW OF EMERALD SHAFT

Commodities

Commodity Importance
Silver Primary
Lead Primary
Zinc Critical Primary
Copper Primary
Gold Secondary
Molybdenum Tertiary

Comments on the commodity information

  • MINE HAD LARGEST BODY OF COPPER ORE IN DISTRICT.

Materials information

Materials Type of material
Chalcocite Ore
Galena Ore
Malachite Ore
Wulfenite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Stratigraphic age (youngest) Late Cambrian
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Abrigo Limestone; Bolsa Quartzite
    Rock description Abrigo Limestone; Bolsa Quartzite

Nearby scientific data

(1) -110.06955, 31.68902
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description N Side Of Ajax Hill Horst, South Of Oregon-Prompter Fault Zone; Abrigo Limestone Dips 35 To 45e

Ore body information

  • Strike N20E
    Dip 76 W
    Length 335.28M
    Width 3.05M

Controls for ore emplacement

  • North - South Dike Fissure, N20e, 76w

Economic information about the deposit and operations

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

Mining district

District name Tombstone District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Grand Central Mining Co, Tombstone Consolidated Mines Co., Bunker Hill Mines Co., Tombstone Developm

Comments on the production information

  • PRODUCTION INCLUDED UNGER GRAND CENTRAL . SMALLER AMOUNTS PRODUCED UP TO 1928 . ONE CARLOAD YIELDED 40% CU.

Workings at the site

  • Type of workings Underground
    Overall depth 268.22M

Comments on the workings information

  • MINE HAS 9 LEVELS, SILVER PLUME SHAFT, 788 FT DEEP, ADJOINS TO THE SOUTH

Comments on development

  • GRAND CENTRAL MINING CO. OPERATED THE EMERALD AND SILVER PLUME FOR MOST OF THE PRODUCTIVE YEARS. EMERALD HAD ONE OF THE LARGEST ORE BODIES IN DISTRICT

Reference information

Bibliographic references

  • Deposit

    BUTLER ETAL, 1938, ABM BULL. 143

  • Deposit

    BUTLER, B.S.; WILSON, E.D.; RASOR, C.A.; 1938, ARIZONA BUREAU OF MINES BULLETIN 143, PL. 3, 4.

  • Deposit

    USGS TM TOMBSTONE, & VICINITY, ARIZ., 1907.

  • Deposit

    . KEITH, S.B., 1973, ARIZONA BUREAU OF MINES BULLETIN 187, P. 75.

  • Production

    BUTLER ETAL, 1938, ARIZ. BUR. OF MINES BULL. 143.

General comments

Subject category Comment text
Deposit UNDERGROUND WORKING DID NOT REACH LIMIT OF ORE SHOOT, WORK DISCONTINUED BECAUSE OF WATER. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Deposit PARTIALLY OXIDIZED BASE METAL SULFIDES WITH SOME WULFENITE AND HORN SILVER IN FAULT BRECCIA IN LIMESTONE AND QUARTZITE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1972 Johnson, Maureen G. U.S. Geological Survey
Updater 01-NOV-1981 Gest, Don E. 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.