Mineralogy Database

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103 samples matching your criteria

  • Sample n°3352 : black single crystal (7 cm)
    Minerals: FERBERITE
    Year: 1953
    Country: Rwanda
  • Sample n°3353 : purplish brown crystal (3 cm)
    Minerals: FERBERITE
    Year: 1953
    Country: Rwanda
  • Sample n°4565 : debris of scoriaceous crystal (2 cm)
    Minerals: FERBERITE
    Year: 1954
    Country: Rwanda
  • Sample n°4566 : black crystal (5 cm) in quartz
    Minerals: WOLFRAMITE
    Year: 1954
    Country: Rwanda
  • Sample n°5446 : bipyramidal square crystal (8 cm)
    Minerals: FERBERITE
    Year: 1955
    Country: Rwanda
  • Sample n°5447 : purple crust on block with manganese oxides (4 cm)
    Minerals: PHOSPHOSIDERITE
    Year: 1955
    Country: Rwanda
  • Sample n°7218 : black massive block (20 cm)
    Minerals: FERBERITE
    Year:
    Country: Rwanda
  • Sample n°7979 : black crystalline mass (10 cm) with enclosed quartz
    Minerals: FERBERITE ANTHOINITE
    Year:
    Country: Rwanda
  • Sample n°8383 : black plates (5-10 cm) in pegmatite
    Minerals: TANTALITE
    Year: 1959
    Country: Rwanda
  • Sample n°8588 : white clayey anthoinite debris (3 cm), yellow hydrokenoesmoreite (var. ferritungstite) coatings
    Minerals: ANTHOINITE HYDROKENOELSMOREITE
    Year:
    Country: Rwanda
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