Mineralogy Database

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379 samples matching your criteria

  • Sample n°9921.1 : black microcrystalline block (15 cm)
    Minerals: ALLUAUDITE
    Year:
    Country: Rwanda
  • Sample n°9922 : black and purple block (15 cm), shiny cleavage planes
    Minerals: ALLUAUDITE PURPURITE
    Year:
    Country: Rwanda
  • Sample n°9924 : rust-coloured blocks (5 cm)
    Minerals: GOETHITE
    Year:
    Country: Rwanda
  • Sample n°9925 : purple purpurite in greisen (10 cm)
    Minerals: PURPURITE
    Year:
    Country: Rwanda
  • Sample n°9926 : scoriaceous block of mixed phosphates (10 cm)
    Minerals: HETEROSITE DUFRENITE
    Year:
    Country: Rwanda
  • Sample n°9928 : blue apatite in pegmatite
    Minerals: APATITE
    Year:
    Country: Rwanda
  • Sample n°10584 : grey fragment with fibrous texture (12 cm)
    Minerals: BISMUTITE
    Year: 1964
    Country: Congo (RDC)
  • Sample n°10585 : altered beige and purplish grey block (15 cm)
    Minerals: BISMUTITE MANGANESE OXIDES
    Year: 1964
    Country: Congo (RDC)
  • Sample n°10586 : mixed block with brown frondelite fibres and purple phosphosiderite crust
    Minerals: FRONDELITE ROCKBRIDGEITE HUREAULITE PHOSPHOSIDERITE
    Year:
    Country: Congo (RDC)
  • Sample n°10587 : sample with green bolivarite crust (radioactive sample)
    Minerals: BOLIVARITE
    Year: 1964
    Country: Congo (RDC)
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