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  3. Mineral Resource Data System (MRDS)

La Cruz

Occurrence 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. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Reserves and resources
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10049032
MRDS ID MX00242
Record type Site
Current site name La Cruz
Related records 10305215

Geographic coordinates

Geographic coordinates: -110.91538, 29.1066 (WGS84)

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
Tungsten Critical Primary

Materials information

Materials Type of material
Scheelite Ore
Epidote Gangue
Garnet Gangue

Analytical data

Result 1.0% WO3

Mineral occurrence model information

Model code 42
USGS model code 14a
Deposit model name W skarn

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -110.91538, 29.1066
ListMap

Economic information

Ore body information

  • Thickness 0.5M
    Length 10M
    Width 10M
    Depth to bottom 10M

Comments on the geologic information

  • ROOF PENDANT OF VERTICALLY DIPPING LIMESTONE COMPLETELY SURROUNDED BY GRANITE. MUCH OF THE LIMESTONE HAS BEEN CONTACT METAMORPHOSED TO GARNET-EPIDOTE TACTITE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Hermosillo

Reserves and resources

  • Type In-situ
    Estimate year 1945
    Commodity Subtype Grade units Group Importance Year
    Tungsten Wo3 1 wt-pct Tungsten Major 1945

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

General comments

Subject category Comment text
Deposit LAYER OF MASSIVE SCHEELITE-BEARING TACTITE 0.5 M WIDE AND 10 M LONG MAY CONTAIN 1.0% TUNGSTIC OXIDE. SIZE AND SHAPE OF LIMESTONE PENDANT SUGGEST THAT DEPOSIT EXTENDS TO A MAX. DEPTH OF 10 M.

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.

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