Mineralogy Database

Search |  About the mineralogy database |  Contact

Sample n° 9315

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
QUARTZ SiO2 tektosilicates - minor
Description
Description: fractured tabular crystals (10 cm) in vein quartz
Information: Dewaele, S., Tack, L., Fernandez-Alonzo, M., Boyce, A., Muchez, P., Schneider, J., Cooper, G. & Wheeler, K., 2008. Geology and mineralization of the Gatumba area, Rwanda : Present state of knowledge. Etudes Rwandaises 16, 6-24.
Origin
  • Country: Rwanda
  • Region: Gisenyi
  • Locality: Rongi
Specification
  • Donors: Varlamoff
    Donation year:
  • Sampling year:
    Registration date:
  • Quantity: 2
    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