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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: UnknownDonation year: 1956
-
Sampling year:Registration date:
-
Quantity: XSize: 3
-
Dimension code 1>2>3: 3Quality code 1>2>3: 1
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Holotype: noParatype: noRadioactive: no
-
Thin section: noChemical analysis: noX-Ray spectra: no