Mineralogy Database

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Sample n° 11074

Minerals found in the sample
Mineral Formula Category Subcategory Importance
PYROLUSITE MnO2 oxides and hydroxides - major
Description
Description: black manganese ore, partly with thick fibrous coating with fine surface texture
Origin
  • Country: Saint Helena (UK)
  • Region: Prosperous Bay
  • Locality: Prosperous Bay cliff
Specification
  • Donors: Basilewsky
    Donation year: 1966
  • Sampling year:
    Registration date:
  • Quantity: 1
    Size:
  • 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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