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  3. Mineral Resource Data System (MRDS)

Nyamalilo

Occurrence in Uganda 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. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Economic information about the deposit and operations
  11. Ownership information
  12. Reserves and resources
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10055825
MRDS ID SP00024
Record type Site
Current site name Nyamalilo
Alternate or previous names Nyamulilo

Geographic coordinates

Geographic coordinates: 29.86795, -1.2383 (WGS84)
Relative position APPROXIMATELY 20 KM WEST OF KABALE IN KIGEZI DISTRICT, SOUTHWEST UGANDA

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
Kaolinite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) 29.86795, -1.2383
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Thin Quartz Veins Enclosed By Carbonaceous Metasediments

Comments on the geologic information

  • FORMATION NAME OF THE HOST ROCK IS THE KARAGWE-ANKOLEAN SYSTEM. FERBERITE PRESENT AS REINITE (FERBERITE PSEUDOMORPHOUS AFTER SCHEELITE).

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No
Discovery year 1931
Year of first production 1937
Year of last production 1981

Ownership information

  • Type Operator
    Owner Bjordal Mines Ltd..
  • Type Owner
    Owner Bjordal Mines Ltd.

Comments on the production information

  • CUMULATIVE PRODUCTION FOR ALL TUNGSTEN MINES IN UGANDA.. PRODUCTION CAPACITY 105,000 T/YEAR OF ORE.

Reserves and resources

  • Type In-situ
    Estimate year 1983
    Total resources 900000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Tungsten Wo3 0.24 wt-pct Tungsten Major 1983

Comments on the reserve resource information

  • FOR A THEORETICAL MINERALIZED AREA MEASURING 1000 M BY 50 M, TO A DEPTH OF 50 M. . "R" DENOTES IN SITU RESOURCES - QUANTITIES OF ECONOMIC INTEREST FOR THE NEXT FEW DECADES. "1" DENOTES KNOWN DEPOSITS WITH RELIABLE ESTIMATES. "E" DENOTES ECONOMICALLY EXPLOITABLE. "M" DENOTES MARGINALLY EXPLOITABLE. "S" DENOTES SUBECONOMIC.

Comments on development

  • YEAR OF LAST PRODUCTION WAS 1981 HOWEVER AN INTERMITTENT PRODUCER. CONSTRAINTS ON DEVELOPMENT OR EXPANSION DUE TO LOW PRICE OF TUNGSTEN.

Reference information

Bibliographic references

  • Deposit

    REEDMAN, A.J., 1973, PARTLY REMOBILIZED SYNGENETIC TUNGSTEN DEPOSIT AT NYAMALILO MINE, OVERSEAS GEOLOGY AND MINERAL RESOURCES, NO. 41, LONDON, INSTITUTE OF GEOLOGICAL SCIENCES, H.M.S.O., P. 101-106.. . . BRITISH COMMONWEALTH GEOLOGICAL LIAISON OFFICE, 1959, TUNGSTEN RESOURCES OF THE BRITISH COMMONWEALTH, 1959, B.C.G.L.O., 1959, NO. 1, P. 12.. . ANSTETT, T.F., BLEIWAS, D.I., AND HURDELBRINK, R.J., 1985, TUNGSTEN AVAILABILITY - MARKET ECONOMY COUNTRIES, U.S. BUREAU OF MINES, INFORMATION CIRCULAR 9025, 51P.. . PARGETER, R.C., 1956, THE RUHIZHA FERBERITE DEPOSIT, KIGEZI; RECORDS OF THE GEOLOGICAL SURVEY OF UGANDA, 1954, P. 27-46..

  • Production

    INTERNATIONAL STRATEGIC MINERALS INVENTORY RECORD W091

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1985 Pasitschniak Anna Geological Survey of Canada

Beyond USGS

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

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