Mineralogy Database

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4831 samples matching your criteria

  • Sample n°17291 : bladed quartz crystals
    Minerals: QUARTZ MALACHITE
    Year: 2016
    Country: Congo (RDC)
  • Sample n°17292 : coating covering surface of coalesced domes
    Minerals: QUARTZ
    Year: 2016
    Country: Congo (RDC)
  • Sample n°17293 : coarse-crystalline coating of cobalt-bearing purple calcite
    Minerals: CALCITE
    Year: 2016
    Country: Congo (RDC)
  • Sample n°17294 : coarse-crystalline coating of cobalt-bearing purple calcite, covered by white calcite
    Minerals: CALCITE
    Year: 2016
    Country: Congo (RDC)
  • Sample n°17295 : coarse-crystalline calcite, with cobalt-bearing purple surface layer
    Minerals: CALCITE
    Year: 2016
    Country: Congo (RDC)
  • Sample n°17296 : fragments of green translucent crystals
    Minerals: TOURMALINE
    Year: 2016
    Country: Congo (RDC)
  • Sample n°17297 : fragments with deep purple colour
    Minerals: AMETHYST (quartz)
    Year: 2016
    Country: Congo (RDC)
  • Sample n°17298 : group of well-developed crystals, var. citrine
    Minerals: QUARTZ
    Year: 2016
    Country: Congo (RDC)
  • Sample n°17299 : large shale fragment crossed by parallel azurite veins
    Minerals: AZURITE
    Year: 2016
    Country: Congo (RDC)
  • Sample n°17300 : abundant rosettes
    Minerals: CORNETITE
    Year: 2016
    Country: Congo (RDC)
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