Mineralogy Database

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Sample n° 1990

Minerals found in the sample
Mineral Formula Category Subcategory Importance
CASSITERITE SnO2 oxides and hydroxides - major
TOURMALINE - cyclosilicates tourmaline major
BERYL Be3Al2Si6O18 cyclosilicates - minor
QUARTZ SiO2 tektosilicates - minor
Description
Description: brown cassiterite crystals (3 cm), black tourmaline needles, pink prismatic beryl crystals (4 cm)
Origin
  • Country: Congo (RDC)
  • Region: Kivu
  • Locality: Kalehe, Numbi
Specification
  • Donors: Marchal
    Donation year:
  • Sampling year:
    Registration date:
  • Quantity: 1
    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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