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Sample n° 12571

Minerals found in the sample
Mineral Formula Category Subcategory Importance
APATITE Ca5(PO4)3(OH,F,Cl) phosphates - major
HORNBLENDE [ ]Ca2((Fe2+,Mg)4Al)(Si7Al)O22(OH)2 inosilicates amphiboles major
MICROCLINE K(AlSi3O8) tektosilicates feldspar major
CALCITE Ca(CO3) carbonates - minor
Description
Description: pegmatite
Origin
  • Country: Congo (RDC)
  • Region: Bas-Congo
  • Locality: Boma, Carrière des Voies Navigables
Specification
  • Donors: Steenstra
    Donation year: 1974
  • Sampling year:
    Registration date:
  • Quantity: 2
    Size: 2
  • Dimension code 1>2>3: 2
    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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