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Sample n° 12891

Minerals found in the sample
Mineral Formula Category Subcategory Importance
TOPAZ Al2SiO4F2 nesosilicates - major
QUARTZ SiO2 tektosilicates - minor
Description
Description: white and yellow crystals (1-3 cm)
Origin
  • Country: Nigeria
  • Region: Jos Plateau
  • Locality: gold and base metals mine
Specification
  • Donors: Cuypers
    Donation year: 1972
  • Sampling year:
    Registration date:
  • Quantity: 7
    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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