Lucifer

Past Producer in Baja California Sur, Mexico with commodity Manganese
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. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Ownership information
  15. Production statistics
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10048947
MRDS ID MX00133
Record type Site
Current site name Lucifer

Geographic coordinates

Geographic coordinates: -112.38736, 27.3597 (WGS84)
Relative position 17 KM NW OF SANTA ROSALIA.

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Mexico Baja California Sur

Comments on the location information

  • ESTIMATED TO NEAREST 5 SECONDS.

Commodities

Commodity Importance
Manganese Critical Primary

Comments on the commodity information

  • NEARLY PURE ORE. LOW SILICA (LESS THAN 5%) AND FE CONTENT, 0.6% PB AND 0.3% CU. AVERAGE OF 1.2% NACL. CHEMICAL GRADE PYROLUSITE MINED SELECTIVELY.

Materials information

Materials Type of material
Coronadite Ore
Hollandite Ore
Pyrolusite Ore
Hematite Gangue
Jasper Gangue
Limonite Gangue

Analytical data

Result AVG. GRADE: 44-45% M

Mineral occurrence model information

Model code 97
USGS model code 24c
Deposit model name Volcanogenic Mn

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff
    Rock unit name Boleo Formation
    Rock description Boleo Formation
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff

Nearby scientific data

(1) -112.38736, 27.3597

Economic information

Geologic structures

Type of structure Regional
Structure description Miocene Volcanics Have Been Tilted 20-45 Degrees E And Offset 50-100 M By A Series Of Normal Faults Trending Nw With 40-50 Sw Dips. Pliocene Sediments Took On Initial Dips Due To Irregular Miocene Surface, And Were Further Tilted By Lplio-Pleis Deformation. Average Dip Of Pliocene Sediments Is 5-10 Degrees E.
Type of structure Local
Structure description Ore Body Offset By Several Small Faults, 8 M Max. Displacement. Subhorizontal Fault Plane Limits Top Of Ore Body Locally.

Ore body information

  • General form MANTO
    Thickness 6M
    Length 600M
    Width 130M

Comments on the geologic information

  • MN DEPOSITS IN TWO ARENACEOUS TUFF MEMBERS OF BOLEO FM. (EARLY PLIOCENE) OVERLYING THICK MIOCENE VOLCANIC SEQUENCE. BOLEO FM. CONSISTS OF INTERBEDDED LATITIC TO ANDESITIC TUFFS AND CONGLOMERATES, FOSSILIFEROUS TUFFACEOUS LIMESTONE, FOSSILIFEROUS SANDSTONE, AND GYPSUM. 100-250 M THICK. COMONDU VOLCANICS (MIOCENE) ARE MADE UP OF INTERBEDDED ANDESITIC TO BASALTIC FLOWS, SILLS, TUFFS, BRECCIAS, AGGLOMERATE, VOLCANIC CONGLOMERATE AND TUFFACEOUS SANDSTONE. AT LEAST 500 M THICK.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Year of first production 1942

Mining district

District name Boleo/Santa Rosalia

Ownership information

  • Type Owner
    Owner Cia. Minera Lucifer, S. A. De C. V.
    First year 1946

Production statistics

  • Year 1955
    Period 1942-1955
    Material ORE MN
    Accuracy Accurate
    Description Cp_Grade: ^Ave. 44-45% Mn.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Ore Manganese Manganese 45wt-pct

Comments on the production information

  • GRADE OF MAIN ORE BODY MINED IN EARLY YEARS CAME CLOSE TO 47-48% MN. OVERALL AVERAGE GRADE: 44-45% MN. DEPOSIT MINED OUT.

Comments on development

  • TWO DIAMOND DRILLING PROGRAMS: 1947-1948, AND 1951-1953. SEE GENERAL COMMENTS.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit DRILLING PROGRAMS: 1947-1948; 31 DD-HOLES RANGING FROM 56-160 M IN DEPTH AND TOTALING 3,037 M, MAINLY IN THE AREA OF THE MESA IMMEDIATELY W AND NW OF THE MINE. RESULTED IN WESTWARD EXTENSION OF THE MINE AND DISCOVERY OF SMALL, ISOLATED ORE BODY THAT WAS LATER MINED FROM INCLINED SHAFT. MOST OF THE HOLES DRILLED, HOWEVER, INDICATED THAT THE MN-BEARING HORIZONS IN THE AREA WERE TOO THIN AND LOW-GRADE TO BE MINABLE. SECOND DRILLING PROGRAM, 1951-1953; 26 DD-HOLES RANGING IN DEPTH FROM 30-150 M AND TOTALING 2,547 M IN THE AREA OF LAVA-COVERED MESA 1.5 KM W AND 2.5 KM NW OF THE MINE. MN-BEARING MATERIAL FOUND IN 10 OF THE HOLES, BUT IN HORIZONS TOO THIN AND LOW-GRADE TO BE MINABLE. ; INFO.SRC : 1 PUB
Deposit GENTLY DIPPING TABULAR ORE BODY OF HIGH-GRADE MN OXIDE. LOCALLY DISCORDANT. MAIN ORE BODY: 600 M LONG, 50-130 M WIDE, 1-6 M THICK (AVE. 2.4 M). ORE FINE-GRAINED AND FRIABLE. CRYPTOMELANE WITH AN AVERAGE BA CONTENT OF MORE THAN 3%, AVERAGE PB CONTENT LESS THAN 2%, AND COMBINED NA+CA CONTENT LESS THAN 1% APPEARS TO BE CHARACTERISTIC OF THE LUCIFER ORE. (FREIBERG, 1982)

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1987 Staude, John-Mark G. (Page, Norman J.) U.S. Geological Survey
Updater 01-MAY-1988 Leonard, Kenneth R. U.S. Geological Survey

Beyond USGS

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