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Sample n° 12109

Minerals found in the sample
Mineral Formula Category Subcategory Importance
HOLLANDITE Ba(Mn4+6Mn3+2)O16 oxides and hydroxides - major
PARSONSITE Pb2(UO2)(PO4)2 phosphates - major
CHALCEDONY (quartz) SiO2 tektosilicates - minor
META-AUTUNITE Ca(UO2)2(PO4)2•2-6H2O phosphates - minor
Description
Description: sample with yellow parsonsite crystals, brown powdery hollandite nodules, green chalcedony, dendritic black oxides
Origin
  • Country: France
  • Region: Puy-de-Dôme
  • Locality: Lachaux, Bigay Mine
Specification
  • Donors: Art
    Donation year: 1969
  • Sampling year:
    Registration date:
  • Quantity: 1
    Size: 10 x 8 cm
  • Dimension code 1>2>3: 2
    Quality code 1>2>3: 1
  • Holotype: no
    Paratype: no
    Radioactive: yes
  • Thin section: no
    Chemical analysis: no
    X-Ray spectra: yes
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