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Sample n° 9694

Minerals found in the sample
Mineral Formula Category Subcategory Importance
MICROLITE (Ca,Na)2Ta2O6(OH) oxides and hydroxides - major
COLUMBITE (Fe,Mg,Mn)Nb2O6 oxides and hydroxides - minor
Description
Description: sample composed of concentratre of yellow-red microlite with greasy lustre, dark brown columbite
Origin
  • Country: Rwanda
  • Region: Gisenyi
  • Locality: Rusororo
Specification
  • Donors: Varlamoff
    Donation year: 1962
  • Sampling year:
    Registration date:
  • Quantity: X
    Size: concentrate
  • Dimension code 1>2>3: 3
    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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