Mineralogy Database

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Sample n° 9483

Minerals found in the sample
Mineral Formula Category Subcategory Importance
COLUMBITE-(Mn) Mn2+Nb2O6 oxides and hydroxides - major
Description
Description: black plates (1-3 cm)
Origin
  • Country: Rwanda
  • Region: Gisenyi
  • Locality: Nyarigamba
Specification
  • Donors: Varlamoff
    Donation year:
  • Sampling year:
    Registration date:
  • Quantity: X
    Size: 2
  • 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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