Mineralogy Database

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Sample n° 742

Minerals found in the sample
Mineral Formula Category Subcategory Importance
CHRYSOCOLLA (Cu2-xAlx)2H2-xSi2O5(OH)4•nH2O phyllosilicates - major
CUPRITE Cu2O oxides and hydroxides - major
MALACHITE Cu2(CO3)(OH)2 carbonates - minor
Description
Description: red block, crust of green needles (malachite), blue surface layer (chrysocolla)
Origin
  • Country: Congo (RDC)
  • Region: Kasai
  • Locality: Ntendu
Specification
  • Donors: Kostka
    Donation year: 1927
  • 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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