Mineralogy Database

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Sample n° 20419

Minerals found in the sample
Mineral Formula Category Subcategory Importance
BIOTITE K(Fe2+,Mg)3(AlSi3O10)(OH)2 phyllosilicates mica major
FELDSPAR - tektosilicates feldspar major
TOURMALINE - cyclosilicates tourmaline major
Description
Description: white aggregates in biotite-rich matrix with long tourmaline crystals
Origin
  • Country: Congo (RDC)
  • Region: Katanga
  • Locality: Manono
Specification
  • Donors: Blanco
    Donation year: 2025
  • 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
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