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Sample n° 13945

Minerals found in the sample
Mineral Formula Category Subcategory Importance
ANTHOINITE AlWO3(OH)3 molybdates and tungstates - major
FERBERITE Fe2+(WO4) molybdates and tungstates - major
TUNGSTITE WO3•H2O oxides and hydroxides - major
QUARTZ SiO2 tektosilicates - minor
Description
Description: quartz with earthy black ferberite masses, altered to yellow tungstite and white anthoinite, blocks of 8-15 cm
Origin
  • Country: Rwanda
  • Region: Kigali
  • Locality: Nyakabingo, near Shyirongi
Specification
  • Donors: Géomines Wassilewski
    Donation year: 1982
  • Sampling year:
    Registration date:
  • Quantity: 3
    Size: 2
  • Dimension code 1>2>3: 2
    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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