Mineralogy Database

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Sample n° 13568

Minerals found in the sample
Mineral Formula Category Subcategory Importance
PYROLUSITE MnO2 oxides and hydroxides - major
Description
Description: black botryoidal blocks (7-10 cm)
Origin
  • Country: Ukraine
  • Region: Nikopol
  • Locality:
Specification
  • Donors: Ecole Royale Militaire
    Donation year: 1977
  • Sampling year:
    Registration date:
  • Quantity: 2
    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