Mineralogy Database

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154 samples matching your criteria

  • Sample n°20028 : dense cover of elongated prismatic crystals on matrix
    Minerals: ARAGONITE
    Year: 2023
    Country: Congo (RDC)
  • Sample n°20029 : crystals associated with fossil wood
    Minerals: NATROLITE
    Year: 2023
    Country: Uganda
  • Sample n°20030 : dark brown calcite on acicular natrolite, associated with fossil wood
    Minerals: CALCITE NATROLITE
    Year: 2023
    Country: Uganda
  • Sample n°20188 : thick crust with botryoidal aspect
    Minerals: HETEROGENITE
    Year: 2023
    Country: Congo (RDC)
  • Sample n°20189 : groups of brownish lath-shaped crystals on substrate
    Minerals: KYANITE
    Year: 2023
    Country: Congo (RDC)
  • Sample n°20190 : cross-section of cubic crystal in massive sulfide ore matrix
    Minerals: CARROLLITE
    Year: 2023
    Country: Congo (RDC)
  • Sample n°20191 : fine-grained coating
    Minerals: PSEUDOMALACHITE
    Year: 2023
    Country: Congo (RDC)
  • Sample n°20192 : intergrowth of elongated crystals, with triangular aspect
    Minerals: CALCITE
    Year: 2023
    Country: Congo (RDC)
  • Sample n°20193 : plate of well-developed crystals
    Minerals: AMETHYST (quartz)
    Year: 2023
    Country: Zambia
  • Sample n°20194 : single and intergrown hexagonal crystals, assumedly pseudomorphs after apatite, composed of fine-grained muscovite
    Minerals: APATITE MUSCOVITE
    Year: 2023
    Country: Mozambique
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