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Sample n° 17020

Minerals found in the sample
Mineral Formula Category Subcategory Importance
HORNBLENDE [ ]Ca2((Fe2+,Mg)4Al)(Si7Al)O22(OH)2 inosilicates amphiboles major
RIEBECKITE [ ]Na2(Fe2+3Fe3+2)Si8O22(OH)2 inosilicates amphiboles major
Description
Description: granite with coarse-crystalline hornblende, partially transformed to light blue riebeckite
Origin
  • Country: Congo (RDC)
  • Region: Bas-Congo
  • Locality: Matadi area, Noqui Massif, Kinzau, carr. Fretin Construct
Specification
  • Donors: Tack
    Donation year: 2012
  • Sampling year: 2011
    Registration date:
  • Quantity: 3
    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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