Mineralogy Database

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Sample n° 1062

Minerals found in the sample
Mineral Formula Category Subcategory Importance
CHALCEDONY (quartz) SiO2 tektosilicates - major
QUARTZ SiO2 tektosilicates - major
VESIGNIEITE Cu3Ba(VO4)2(OH)2 vanadates - major
DIOPTASE CuSiO3•H2O cyclosilicates - minor
VOLBORTHITE Cu3V2O7(OH)2•2H2O vanadates - minor
Description
Description: geodic rock with white quartz with dioptase spots, green crust (volborthite) and bright black needles (vesignieite)
Origin
  • Country: Congo (RDC)
  • Region: Kasai
  • Locality: Ntendu
Specification
  • Donors: Kostka
    Donation year: 1910
  • 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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