Mineralogy Database

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Sample n° 19357

Minerals found in the sample
Mineral Formula Category Subcategory Importance
BIOTITE K(Fe2+,Mg)3(AlSi3O10)(OH)2 phyllosilicates mica major
Description
Description: large zoned crystal
Origin
  • Country: Madagascar
  • Region:
  • Locality:
Specification
  • Donors: Université Libre de Bruxelles (ULB) Wilmart
    Donation year: 2020
  • Sampling year:
    Registration date:
  • Quantity: 1
    Size:
  • Dimension code 1>2>3: 1
    Quality code 1>2>3: 1
  • Holotype: no
    Paratype: no
    Radioactive: no
  • Thin section: no
    Chemical analysis: no
    X-Ray spectra: no