Mineralogy Database

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Sample n° 13298

Minerals found in the sample
Mineral Formula Category Subcategory Importance
AMETHYST (quartz) SiO2 tektosilicates - major
Description
Description: geode of purple crystals
Origin
  • Country: Madagascar
  • Region: Antananarivo Province
  • Locality: Antsirabe
Specification
  • Donors: Rajohnson
    Donation year: 1975
  • Sampling year:
    Registration date:
  • Quantity: 1
    Size: 1
  • Dimension code 1>2>3: 1
    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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