Mineralogy Database

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36 samples matching your criteria

  • Sample n°6574 : black crystals in micaschist
    Minerals: TOURMALINE
    Year:
    Country: Congo (RDC)
  • Sample n°9968 : shiny grey fibrous block (7 cm)
    Minerals: ARFVEDSONITE
    Year: 1953
    Country: Congo (RDC)
  • Sample n°9969 : aggregate of fibres along contact with pink granite
    Minerals: ARFVEDSONITE
    Year: 1953
    Country: Congo (RDC)
  • Sample n°9970 : grey needles (12 cm) in micaceous quartz
    Minerals: ARFVEDSONITE QUARTZ
    Year: 1953
    Country: Congo (RDC)
  • Sample n°4203 : pegmatite
    Minerals: FELDSPAR
    Year: 1953
    Country: Rwanda
  • Sample n°6543 : plates
    Minerals: MUSCOVITE
    Year:
    Country: Rwanda
  • Sample n°16880 : section of large hexagonal crystal (20 cm)
    Minerals: BERYL
    Year: 1953
    Country: Rwanda
  • Sample n°16881 : large block, including contact with coarse-crystalline quartz
    Minerals: AMBLYGONITE
    Year: 1953
    Country: Rwanda
  • Sample n°16882 : massive block
    Minerals: AMBLYGONITE
    Year: 1953
    Country: Rwanda
  • Sample n°16883 : pegmatite with well-developed tourmaline crystals
    Minerals: TOURMALINE
    Year: 1953
    Country: Rwanda
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