Mineralogy Database

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Sample n° 10186

Minerals found in the sample
Mineral Formula Category Subcategory Importance
RANCIEITE (Ca,Mn2+)0,2(Mn4+,Mn'3+)O2•0,6H2O oxides and hydroxides - major
Description
Description: black earthy metallic nodules with ochre crust (12 cm)
Origin
  • Country: France
  • Region: Lozère
  • Locality: Montmirat
Specification
  • Donors: BRGM Paris
    Donation year: 1964
  • Sampling year:
    Registration date:
  • Quantity: 1
    Size: 2
  • 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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