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

San Alberto

Prospect in Sonora, Mexico with commodities Silver, Tungsten
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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. Ore body information
  8. Economic information about the deposit and operations
  9. Ownership information
  10. Reserves and resources
  11. Workings at the site
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10255520
MAS/MILS ID 2010490030
Record type Site
Current site name San Alberto

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -109.86732, 27.03359 (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
Silver Secondary
Tungsten Critical Primary

Nearby scientific data

Ore Body (1) -109.86732, 27.03359
ListMap

Economic information

Ore body information

  • Field Value
    Type of Orebody #1 UNKNOWN
    Shape of Orebody #1 UNKNOWN
    Primary mode of Origin OTHER
    Primary Ore Control IGNEOUS
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Date of Last Modification 830902

Comments on the geologic information

  • SULFIDE MINERALS ALSO PRESENT.
  • VOLCANIC ROCKS INTRUDED BY ACIDIC PLUTONS.

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Metallic
Significant No
Mining method Open Pit
Milling method Gravity

Ownership information

  • Type Owner
    Owner Draco
    Interest 100
    Home office Mexico
    Year 1982

Comments on the ownership information

  • DRACO OWNED BY ALFA (51%) & INCO (49%). FORMERLY 2010000006.

Reserves and resources

  • Type In-situ
    Estimate year 1983
    Measured 5500000mt ore
    Demonstrated 5500000mt ore
    Total resources 5500000mt ore
    Commodity Subtype Grade units Group Importance Year
    Tungsten Wo3 0.6 wt-pct Tungsten Major 1983

Comments on the reserve resource information

  • 19% MINE RECOVERY. 12.5% ORE DILUTION.
  • RESOURCES AS OF 1/83.

Workings at the site

  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Primary Material Cover HARD ROCKS
    Hardness of Ore HARD ROCKS
    Capacity 76
    Capacity Units MT ORE/DAY
    Unit Production Cost 5.12
    Units of Production $/MT ORE
    Operating Days per Year 300
    Year of Information 1982
  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 2
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Primary Material Cover HARD ROCKS
    Hardness of Ore HARD ROCKS
    Capacity 100
    Capacity Units MT ORE/DAY
    Unit Production Cost 5.12
    Units of Production $/MT ORE
    Operating Days per Year 300
    Year of Information 1982
  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 3
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Primary Material Cover HARD ROCKS
    Hardness of Ore HARD ROCKS
    Capacity 200
    Capacity Units MT ORE/DAY
    Unit Production Cost 5.12
    Units of Production $/MT ORE
    Operating Days per Year 300
    Year of Information 1982
  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 4
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Primary Material Cover HARD ROCKS
    Hardness of Ore HARD ROCKS
    Capacity 667
    Capacity Units MT ORE/DAY
    Unit Production Cost 8.04
    Units of Production $/MT ORE
    Operating Days per Year 300
    Year of Information 1982

Comments on other economic factors

  • TRANSPORTATION COSTS MILL TO SMELTER: $90/MT.

Reference information

Bibliographic references

  • Reserve-Resource

    ROSKILL INFORMATION SERVICES; THE ECONOMICS OF TUNGSTEN 6'TH

  • Reserve-Resource

    EDITION. P 103.

General comments

Subject category Comment text
Deposit OPERATING STATUS: OPERATING PILOT PLANT.

Reporter information

Type Date Name Affiliation Comment
Reporter 19-APR-1995 Bleiwas, Donald 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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