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  3. Mineral Resource Data System (MRDS)

Rangwa/Ruri/Homa

Plant in Kenya with commodities REE, Thorium
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Warning: This record lacks important information: bibliographic references, which we consider necessary for a comprehensive report.
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. Ownership information
  11. Reserves and resources
  12. Links to other databases
  13. Reporter information

Geologic information

Identification information

Deposit ID 10207861
MAS/MILS ID 7790009001
Record type Site
Current site name Rangwa/Ruri/Homa

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 34.25123, -0.49836 (WGS84)
Elevation 1700

Site location context

Political divisions (FIPS codes)

Kenya(country)

Africa(continent)

Land(continent)

Geographic areas

Country
Kenya

Commodities

Commodity Importance
REE Critical Primary
Thorium Secondary

Materials information

Materials Type of material
Barite Unknown
Fluorite Unknown
Monazite Unknown

Nearby scientific data

Ore Body (1) 34.25123, -0.49836
ListMap

Economic information

Ore body information

  • Thickness 9M
    Length 40M
    Width 700M
    Depth to top 9M
    Field Value
    MAS Matrix # 9
    MAS Column # 4
    Type of Orebody #1 STOCKWORK
    Shape of Orebody #1 DOMELIKE
    Type of Orebody #2 REPLACEMENT
    Primary mode of Origin CONT METASOMATIC
    Primary Ore Control FRACTURING
    Date of Last Modification 910718

Economic information about the deposit and operations

Operation type Surface
Development status Plant
Commodity type Metallic
Significant Yes
Discovery year 1940
Mining method Open Pit
Plant type Beneficiation (Mill)
Plant subcategory Gravity
Milling method Unspecified

Ownership information

  • Type Owner
    Owner Kenya Government
    Interest 100
    Home office Kenya
    Year 1991
    First year 1991

Reserves and resources

  • Type In-situ
    Estimate year 1990
    Indicated 375000mt ore
    Demonstrated 375000mt ore
    Total resources 375000mt ore
    Commodity Subtype Grade units Group Importance Year
    REE REE 3.54 wt-pct REE Major 1990
    Thorium ThO2 1.87 wt-pct Thorium Minor 1990

Comments on the reserve resource information

  • MINEABLE AND RECOVERABLE, BASED UPON 5% DILUTION AND 95% REC. MONAZITE GRADE = 5.6%. REO GRADE OF 3.54% IS BASED ON 60% OF THE MONAZITE VALUE OF 5.9%. STRIP RATIO IS 1:1.

Comments on other economic factors

  • POTENTIAL PRODUCTION IS FORECAST AS 52,000 MTPY OF ROCK AT A 60% PLANT RECOVERY TO MAKE A 53% MONAZITE/BASTNASITE CONS.

Reference information

Reporter information

Type Date Name Affiliation Comment
Reporter 23-SEP-1996 Jackson, Wayne U.S. Bureau of Mines

Beyond USGS

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

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