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Aguachile Fluorspar - Beryllium Deposit

Producer in Coahuila De Zaragoza, Mexico with commodities Fluorine-Fluorite, Beryllium
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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. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10069425
MRDS ID W006954
Record type Site
Current site name Aguachile Fluorspar - Beryllium Deposit
Alternate or previous names Pico Etero
Related records 10190840

Geographic coordinates

Geographic coordinates: -102.33932, 29.29746 (WGS84)
Elevation 1450
Relative position 130 AIR KM SE OF MARATHON, TEXAS, ABOUT 30 KM EAST OF BIG BEND NATIONAL PARK.

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Boquillas(quadrangle 1:100,000 scale)

Emory Peak(quadrangle 1:250,000 scale)

Geographic areas

Country State
Mexico Coahuila De Zaragoza

Comments on the location information

  • LATITUDE AND LONGITUDE ARE FOR THE CENTER OF THE PICO ETERO DISTRICT.

Commodities

Commodity Importance
Fluorine-Fluorite Critical Primary
Beryllium Critical Primary

Materials information

Materials Type of material
Bertrandite Ore
Fluorite Ore
Calcite Gangue
Quartz Gangue

Analytical data

Result CAF2 - 60 TO 80%
Result CACO3 - 12%
Result SIO2 - 5%
Result BERTRANDITE (BE4(OH)2 SIO7) - 0.3%

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Boquillas Limestone;Buda Limestone;Georgetown Limestone;Edwards Limestone
    Rock description Boquillas Limestone;Buda Limestone;Georgetown Limestone;Edwards Limestone

Nearby scientific data

(1) -102.33932, 29.29746
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Northwest-Trending Synclinorium Bounded On The Northeast By The Serranias Del Burro And On The Southwest By The Sierra Del Carmen
Type of structure Local
Structure description Aguachile Mountain - An Example Of Intrusive Igneous Doming, Cauldron Subsidence, And Ring And Arcuate Dikes

Ore body information

  • General form ARCUATE
    Length 670M
    Width 60M
    Depth to top 0M
    Depth to bottom 120M

Controls for ore emplacement

  • Downthrown Side Of Faulted Contact Between Rhyolite Dike And Intensely Brecciated Limestone

Economic information about the deposit and operations

Development status Producer
Commodity type Both
Deposit size Large
Significant No
Year of first production 1953

Mining district

District name Pico Etero District

Ownership information

  • Type Operator
    Owner La Domincia, Sa
  • Type Owner
    Owner La Domincia, Sa (49% Owned By E. I. Dupont De Nemours And Co. Inc.)

Comments on the production information

  • ITEM 1 -PRODUCTION EXCEEDED 100,000 MT/YEAR FROM 1966 TO AT LEAST1972. ITEM 8 - FIGURE FOR CUMULATIVE PRODUCTION IS CALCULATED FROM INFORMATION ON ANNUAL PRODUCTION. ITEM 2 - BERTRANDITE AT 0.3%.

Comments on the workings information

  • MINED BY SUB-CAVING METHOD. MONTHLY MINING CAPACITY IS APPROXIMATELY 16,500 TPM FLUORSPAR.

Comments on development

  • ECON.COM: IT IS 42 KM BY ROAD FROM THE MINE TO THE MILL AT HEATH CROSSING. IT IS ANOTHER 120 KM TO THE RAILROAD AT MARATHON. A 400 MT/DAY MILL SERVES THE AGUACHILE AS WELL AS THE CUATRO PALMAS MINES.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit DEPOSIT IS NEAR IGNEOUS CONTACT AND FORMED FROM REPLACEMENT AND BRECCIA FILLING.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1975 Schruben, Paul G. U.S. Geological Survey
Updater 01-AUG-1991 Orris, Greta J. U.S. Geological Survey

Beyond USGS

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

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