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  3. Mineral Resource Data System (MRDS)

Lourdes

Producer in Sonora, Mexico with commodity Graphite
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Host and associated rocks
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Ownership information
  12. Reserves and resources
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10024363
MRDS ID ISM0072
Record type Site
Current site name Lourdes
Alternate or previous names Lourdes Mine, Lourdes-San Francisco-Veta-Jecho

Geographic coordinates

Geographic coordinates: -110.50065, 28.60023 (WGS84)
Elevation 822
Relative position CENTROID ABOUT 5 KM

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

  • THE LOURDES MINE CONSISTS OF 3 UNITS: LOURDES, SAN FRANCISCO, VETA JECHO

Commodities

Commodity Importance
Graphite Critical Primary

Comments on the commodity information

  • GRAPHITE, AMORPHOUS

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Barranca-Formation; Laramide
    Rock description Barranca-Formation;Barranca-Formation;Laramide
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -110.50065, 28.60023
ListMap

Economic information

Ore body information

  • Depth to top 160M

Comments on the geologic information

  • THERMAL METAMORPHISM; LCRET; GRAPHITE, QUARTZ, CLAY-MINERALS, PYRITE; GENERALLY LIMESTONE IS BELOW QUARTZITES ARE ABOVE GRAPHITE BEDS, WHICH ARE CONTACTMETAMORPHOSED COAL SEAMS

Economic information about the deposit and operations

Development status Producer
Commodity type Non-metallic
Significant No
Discovery year 1951
Year of first production 1957
Year of last production 1985

Mining district

District name Sonora-Graphite-District

Ownership information

  • Type Owner-Operator
    Owner Grafitos Mexicanos S.A.

Comments on the production information

  • 10000 TO 100000 TPY ORE

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Total resources 2000mt ore
    Commodity Subtype Grade units Group Importance Year
    Graphite Fc 75 wt-pct Graphite Major 1982

Comments on the reserve resource information

  • POSSIBLE RESOURCES TOTAL IDENTIFIED RESOURCES (R1E, R2E)
  • RR1IS PROVED, R1E2IS PROBABLE RESOURCES, TOTAL R1E IS 900000 TONNES

Comments on development

  • NON-GEOLOGIC CONSTRAINTS ON DEVELOPMENT OR EXPANSION IN 1-5 YRS. (). THE ORE IS SIZED, DRIED AND BAGGED AT TORRES-BLENDING PLANT. GRAFITOS MEXICANOS S.A. IS AN ASSOCIATE OF CUMMINGS-MOORE GRAPHITE CO. WHICH IS A SUBSIDIARY OF ASBURY GRAPHITE MILLS INC. (BOTH US-COMPANIES)

Reference information

Bibliographic references

  • Deposit

    WEIS, P.L. & SALAS, G.A., 1978: ESTIMATING RESERVES OF AMORPHOUS GRAPHITE IN SONORA, MEXICO.- ENG. & MIN.JOURN., OCT. 1978, P.123-128

  • Production

    USBM-MAS

General comments

Subject category Comment text
Deposit THIS RECORD WAS COMPILED FOR THE INTERNATIONAL STRATEGIC MINERALS INVENTORY. THE DATA WERE USED IN PREPARATION OF THE USGS CIRCULAR 930 SERIES OF REPORTS. MINERAL RESOURCE CATEGORIES AND CODES HEREIN ARE FROM THE INTERNATIONAL CLASSIFICATION SYSTEM RECOMMENDED BY THE UNITED NATIONS GROUP OF EXPERTS ON DEFINITIONS AND TERMINOLOGY FOR MINERAL RESOURCES. (SEE NATIONAL RESOURCES FORUM, V. 4, NO. 3, P. 307-313.). UNDERGROUND SEE FOR C18

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1985 Krauss, Ulrich H. Bundesanstalt Fuer Geowissenschaften und Rohstoffee (Germany)

Beyond USGS

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

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