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Sample n° 5878

Minerals found in the sample
Mineral Formula Category Subcategory Importance
COLUMBITE (Fe,Mg,Mn)Nb2O6 oxides and hydroxides - major
TANTALITE (Fe2+,Mn2+)Ta2O6 oxides and hydroxides - major
Description
Description: black fine concentrate
Information: Melcher, F., Sitnikova, M.A., Graupner, T., Martin, N, Oberthür, T., Henjes-Kunst, F., Gäbler, E., Gerdes, A., Brätz, H., Davis, D.W. & Dewaele, S., 2008. Fingerprinting of conflict minerals : columbite-tantalite ('coltan') ores. SGA News 23, 1-14. (sample Coltan 110)
Origin
  • Country: Congo (RDC)
  • Region: Maniema
  • Locality: Lubutu, Obea Basin
Specification
  • Donors: Unknown
    Donation year: 1956
  • Sampling year:
    Registration date:
  • Quantity: X
    Size: 3
  • Dimension code 1>2>3: 3
    Quality code 1>2>3: 1
  • Holotype: no
    Paratype: no
    Radioactive: no
  • Thin section: no
    Chemical analysis: no
    X-Ray spectra: no
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