Nyamalilo

Past Producer in Uganda with commodity Tungsten
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Ownership information
  12. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10207928
MAS/MILS ID 7780800004
Record type Site
Current site name Nyamalilo
Alternate or previous names Nyamalilo Mine

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 29.50129, -0.28168 (WGS84)
Location accuracy 5000(meters)

Site location context

Political divisions (FIPS codes)

Uganda(country)

Geographic areas

Country
Uganda

Commodities

Commodity Importance
Tungsten Critical Primary

Materials information

Materials Type of material
Ferberite Unknown
Kaolinite Unknown
Quartz Unknown

Nearby scientific data

Ore Body (1) 29.50129, -0.28168

Economic information

Ore body information

  • Thickness 90M
    Length 1000M
    Field Value
    Type of Orebody #1 DISSEMINATED
    Shape of Orebody #1 IRREGULAR
    Primary mode of Origin EVAPORATION
    Secondary mode of Origin METAMORPHISM
    Primary Ore Control LITHOLOGY
    Date of Last Modification 830902

Comments on the geologic information

  • ORE OCCURS IN QUARTZ VEINS PARALELLING THE CLEAVAGE PLANES IN CARBONACEOUS METASEDIMENTS, IN PARTICULAR, ARGILLITE

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Commodity type Metallic
Significant Yes
Mining method Open Pit
Year of first production 1955
Milling method Gravity

Mining district

District name Kigezi

Ownership information

  • Type Owner
    Owner Ugandan Government
    Interest 100
    Home office Uganda
    Year 1982

Comments on the production information

  • MINE PRODUCED 42MT OR CONCENTRATES FROM 35,000 TONS OF ORE FROM 1966 TO 1970 WITH AN ORE GRADE OF 0.12% TUNGSTEN. THE SAME ORE GRADE WAS MINED FROM 1971 TO 1978 BUT ONLY 21 MT OF CONCENTRATE WERE PRODUCED EACH YEAR FROM 17,500 MT OF ORE.

Comments on the reserve resource information

  • MINE RECOVERY IS ESTIMATED AT 85%; DILUTION, 5%.
  • RESOURCES AS OF 1/83.

Workings at the site

  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Percent Waste Rock 60
    Hardness of Ore M-HARD ROCKS
    Avg. Bench Height (meters) 5
    Capacity 300
    Capacity Units MT ORE/DAY
    Unit Production Cost 4.5
    Units of Production $/MT ORE
    Operating Days per Year 350
    Operating Shifts per Day 2
    Year of Information 1982

Reference information

Bibliographic references

  • Deposit

    DMA SERIES 1501 MAP,SHEET SA 35-8, SCALE 1:250,000.

  • Deposit

    PAGETER, R. C. MINING AND ECONOMIC GEOLOGY: CHAP. IN GEOL.

  • Deposit

    SURV. OF UGANDA RECORDS FOR 1950, P.37.

  • Deposit

    PALLISTER,J.W. THE GEOLOGY OF SOUTHERN MENGO, GEOL. SURV.

  • Deposit

    OF UGANDA, BULL. NO. 1, 1959, P.79.

  • Deposit

    BARNES,J.W.(ED.),THE MINERAL RESOURCES OF UGANDA, GEOL.

  • Deposit

    SURV. OF UGANDA, BULL. NO.4, 1961, PP.32-33.

  • Deposit

    REEDMAN, A.J., PARTLY REMOBILIZED SYNGENETIC TUNGSTEN

  • Deposit

    DEPOSIT AT NYAMALILO MINE, 50TH ANNIVERSARY GEOLOGICAL SURVEY

  • Deposit

    AND MINES DEPT., UGANDA, OVERSEAS GEOL. AND MINERAL

  • Deposit

    RES. NO. 41, INST. OF GEOL. SCIENCES, LONDON, 1973.

General comments

Subject category Comment text
Deposit ESTIMATED LOCATION IS A LOW HILL, 25 KM NW OF KABALE AND 11 KM NE OF LAKE MUTANDU. FERBERITE IS MAIN ORE MINERAL. IRREGULAR REPLACEMENTS IN CRESTS OF MINOR FOLDS. QUARTZ VEINS FOLLOW CLEAVAGE IN PHYLLITES.

Reporter information

Type Date Name Affiliation Comment
Reporter 20-APR-95 Gazdik U.S. Bureau of Mines

Beyond USGS

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