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

Amelia

Plant in Sonora, Mexico with commodity Gold
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Nearby scientific data
  7. Economic information about the deposit and operations
  8. Ownership information
  9. Reserves and resources
  10. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10133585
MRDS ID MX00280
MAS/MILS ID 2010490038
Record type Site
Current site name Amelia
Related records 10049064

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -110.58396, 30.63076 (WGS84)
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Mexico Sonora

Commodities

Commodity Importance
Gold Primary

Nearby scientific data

Ore Body (1) -110.58396, 30.63076
ListMap

Economic information

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Plant
Commodity type Metallic
Deposit size Small
Significant Yes
Mining method Open Pit
Year of first production 1993
Plant type Leach
Plant subcategory Precipitation
Milling method Carbon-In-Leach-Merrill-Crowe

Ownership information

  • Type Owner
    Owner Walhalla Mining Co.
    Interest 50
    Home office Australia
    Year 1992
  • Type Owner
    Owner Red Rock Mining Corp.
    Interest 50
    Home office Australia
    Year 1992

Reserves and resources

  • Type In-situ
    Estimate year 1993
    Demonstrated 2200000mt ore
    Total resources 2200000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 2.6 g/mt Gold Major 1993
  • Type In-situ
    Estimate year 1993
    Measured 1200000mt ore
    Demonstrated 1200000mt ore
    Total resources 1200000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 3.01 g/mt Gold Major 1993

Comments on the reserve resource information

  • OWNED BY TERRA MINES (49%) AND PRIVATE MEXICAN INVESTORS (51%). BUILT A 650 TPD CRUSHING PLANT, HEAP LEACH AND GOLD RECOVERY PLANT. CURRENT MINING IS UNDERGROUND. TWO OTHER ZONES, NOT FULLY EXPLORED ARE AMENABLE TO OPEN PIT MINING. CURRENT LEACH RECOVERY IS ABOUT 70%. WALHALLA NOW OWNS A 50% DIRECT AND 32% INDIRECT INTEREST IN AMELIA ALONG WITH RED ROCK MINING CORPORATION. EXPECTED START OF OPEN PIT MINING IN NOVEMBER 1992. OPERATING COST EXPECTED TO BE $150 PER OUNCE. SOURCE FOR RESERVES IS GOLD GAZETTE, SEPTEMBER 21, 1992, P. 19.
  • E&MJ, FEBRUARY 1988, P. 69.

Reference information

Bibliographic references

  • Deposit

    MINING JOURNAL, LONDON, "NEW EXPLORATION PROGRAMME FOR

  • Deposit

    AMELIA", NOVEMBER 26, 1993, P. 361.

  • Deposit

    LATIN AMERICAN MINING LETTER, "WALHALLA STARTS NEW AMELIA

  • Reserve-Resource

    METAL BULLETIN, "WALHALLA PLANS MARCH START OF MEXICAN

  • Reserve-Resource

    AMELIA GOLD MINE", JANUARY 7, 1993, P. 11.

  • Reserve-Resource

    AMELIA" NOVEMBER 26, 1993, P. 361.

General comments

Subject category Comment text
Deposit OPERATIONS ACTUALLY BEGAN IN THE LAST WEEK OF NOVEMBER, 1993. LISTED UNDER USGS MRDS SYSTEM AS MX00280

Reporter information

Type Date Name Affiliation Comment
Reporter 16-OCT-95 Unknown U.S. Bureau of Mines

Beyond USGS

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

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