Mineralogy Database

Search |  About the mineralogy database |  Contact

Sample n° 4446

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 plates (6 cm)
Information: Gouder de Beauregard, C., Dubois, J. & Bourguignon, P., 1967. Comportement thermique des columbotantalites. Annales de la Société Géologique de Belgique 90, 501-518.
Origin
  • Country: Rwanda
  • Region: Gisenyi
  • Locality: Kirengo
Specification
  • Donors: Polinard
    Donation year: 1954
  • Sampling year:
    Registration date:
  • Quantity: 3
    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
Previous page