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Sample n° 6215

Minerals found in the sample
Mineral Formula Category Subcategory Importance
COLUMBITE (Fe,Mg,Mn)Nb2O6 oxides and hydroxides - major
APATITE Ca5(PO4)3(OH,F,Cl) phosphates - minor
CHILDRENITE Fe2+Al(PO4)(OH)2•H2O phosphates - minor
ORTHOCLASE K(AlSi3O8) tektosilicates feldspar minor
Description
Description: sample with bright black columbite, brown childrenite rosettes, blue apatite (weakly radioactive sample)
Origin
  • Country: Congo (RDC)
  • Region: Kivu
  • Locality: Mwenga, Kobokobo
Specification
  • Donors: MGL
    Donation year: 1958
  • Sampling year:
    Registration date:
  • Quantity: 1
    Size: 7 x 4 cm
  • Dimension code 1>2>3: 2
    Quality code 1>2>3: 1
  • Holotype: no
    Paratype: no
    Radioactive: yes
  • Thin section: no
    Chemical analysis: no
    X-Ray spectra: yes
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