Mineralogy Database

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9 samples matching your criteria

  • Sample n°11159 : small specular veins in ochre earthy block (4 cm)
    Minerals: HEMATITE
    Year:
    Country: Rwanda
  • Sample n°11453 : multicoloured plate of petrified wood (15 cm)
    Minerals: CHALCEDONY (quartz)
    Year:
    Country: USA
  • Sample n°12049 : colourless to yellowish glass-like opal on substrate, bright green fluorescence
    Minerals: OPAL
    Year:
    Country: Rwanda
  • Sample n°12488 : bundles of brown acicular prismatic crystals in oxidised rock
    Minerals: TOURMALINE
    Year: 1970
    Country: Rwanda
  • Sample n°12950 : octahedral crystals (1 cm)
    Minerals: ZIRCON
    Year:
    Country: Congo (RDC)
  • Sample n°13193 : block of mixed white phosphates (16 cm)
    Minerals: MONTEBRASITE WARDITE FLUORAPATITE WAVELLITE
    Year: 1974
    Country: Rwanda
  • Sample n°13194 : black block with purple crust (18 cm)
    Minerals: HETEROSITE PHOSPHOSIDERITE
    Year: 1974
    Country: Rwanda
  • Sample n°13195 : black block with purple crust and black powder (13 cm)
    Minerals: HETEROSITE PHOSPHOSIDERITE MANGANESE OXIDES
    Year: 1974
    Country: Rwanda
  • Sample n°19643 : crystal fragments
    Minerals: FERBERITE
    Year:
    Country: Rwanda
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