Mineralogy Database

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Sample n° 12556

Minerals found in the sample
Mineral Formula Category Subcategory Importance
GOLD Au native elements - major
DIOPTASE CuSiO3•H2O cyclosilicates - minor
KATANGITE (plancheite) Cu8(Si4O11)2(OH)4•H2O inosilicates - minor
Description
Description: small crystals on iron-rich rock
Information: RMCA Dossier G 266 G
Origin
  • Country: Angola
  • Region: Namibe Province
  • Locality: Mossamedes, Vimpongo Mine
Specification
  • Donors: Alyea
    Donation year: 1922
  • 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