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Sample n° 1885

Minerals found in the sample
Mineral Formula Category Subcategory Importance
FERBERITE Fe2+(WO4) molybdates and tungstates - major
HYDROKENOELSMOREITE [ ]2W2O6(H2O) molybdates and tungstates - major
ANTHOINITE AlWO3(OH)3 molybdates and tungstates - minor
QUARTZ SiO2 tektosilicates - minor
Description
Description: altered black crystal in vein quartz debris (5 cm), with hydrokenoesmoreite (var. ferritungstite)
Information: Van Tassel, R., 1961. Ferritungstite et meymacite de Meymac, France, et d'Afrique centrale. Bulletin de la Société Belge de Géologie 70, 376-406.
Origin
  • Country: Rwanda
  • Region: Ruhengeri
  • Locality: Kifurwe
Specification
  • Donors: Marchal
    Donation year:
  • Sampling year:
    Registration date:
  • Quantity: 1
    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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