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Llano Colorado

Past Producer in Sonora, Mexico with commodity 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. Materials information
  7. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Production statistics
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10049060
MRDS ID MX00275
Record type Site
Current site name Llano Colorado
Related records 10280120

Geographic coordinates

Geographic coordinates: -109.87842, 29.0155 (WGS84)
Relative position 7 KM N OF THE TOWN OF LLANO COLORADO.

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

Comments on the location information

  • ESTIMATE TO WITHIN 1 KM

Commodities

Commodity Importance
Tungsten Critical Primary

Materials information

Materials Type of material
Scheelite Ore

Mineral occurrence model information

Model code 45
USGS model code 15
Deposit model name W pegmatite

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -109.87842, 29.0155
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Economic information

Comments on the geologic information

  • SMALL BODY OF GRANITE INTRUDES QUARTZITE AND VOLCANIC ROCKS. GEOLOGY SIMILAR TO LA DURA DEPOSITS.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1943

Production statistics

  • Year 1943
    Period -1943
    Material CON W
    Accuracy Estimate
    Description Cp_Grade: ^35% Wo3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Wo3 Conc. Tungsten Tungsten 35wt-pct

Comments on the production information

  • SOME SCHEELITE MINED FROM SHALLOW PITS IN BEDROCK, BUT MOST TAKEN FROM ADJACENT WASHES.

Reference information

Bibliographic references

  • Deposit

    WIESE, JOHN H., AND CARDENAS, SALVADOR, 1945, TUNGSTEN DEPOSITS OF THE SOUTHERN PART OF SONORA, MEXICO: USGS BULL 946, P. 103-130

  • Production

    WIESE AND CARDENAS, 1945.

General comments

Subject category Comment text
Deposit SMALL STRINGERS OF SCHEELITE-BEARING PEGMATITE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1987 Staude, John-Mark G. (Page, Norman J.) U.S. Geological Survey
Updater 01-OCT-1987 Leonard, Kenneth R. 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