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Sample n° 12113

Minerals found in the sample
Mineral Formula Category Subcategory Importance
LANGITE Cu4(SO4)(OH)6•2H2O sulfates - major
POSNJAKITE Cu4(SO4)(OH)6•H2O sulfates - major
URANOPHANE Ca(UO2)2(SiO3OH)2•5H2O nesosilicates - major
META-AUTUNITE Ca(UO2)2(PO4)2•2-6H2O phosphates - minor
METATORBERNITE Cu(UO2)2(PO4)2•8H2O phosphates - minor
PARSONSITE Pb2(UO2)(PO4)2 phosphates - minor
Description
Description: sample with yellow uranophane crystals, pale blue langite, dark blue posnjakite, some isolated parsonsite crystals, white meta-autunite lamellae, little metatorbernite
Origin
  • Country: France
  • Region: Puy-de-Dôme
  • Locality: Lachaux, Bigay Mine
Specification
  • Donors: Art
    Donation year: 1969
  • Sampling year:
    Registration date:
  • Quantity: 2
    Size: 9 x 5 cm, 9 x 9 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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