Mineralogy Database

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576 samples matching your criteria

  • Sample n°10076 : dull black prismatic quartz crystals (2 cm), mass of white calcite nodules, olive-coloured powder (epidote)
    Minerals: CALCITE CHALCEDONY (quartz) EPIDOTE QUARTZ
    Year: 1963
    Country: Congo (RDC)
  • Sample n°10077 : transparent twinned crystal (13 cm)
    Minerals: CALCITE
    Year: 1963
    Country: Congo (RDC)
  • Sample n°10078 : transparent yellow calcite crystals
    Minerals: CALCITE QUARTZ
    Year: 1963
    Country: Congo (RDC)
  • Sample n°10079 : dull red prismatic quartz crystals and calcite crystals on dolerite
    Minerals: QUARTZ CHALCEDONY (quartz) CALCITE
    Year: 1963
    Country: Congo (RDC)
  • Sample n°10080 : yellow rhombohedral crystals
    Minerals: CALCITE
    Year: 1963
    Country: Congo (RDC)
  • Sample n°10081 : amygdales in lava
    Minerals: CALCITE
    Year: 1963
    Country: Congo (RDC)
  • Sample n°10082 : rhombohedral iceland spar (4 cm)
    Minerals: CALCITE
    Year: 1963
    Country: Congo (RDC)
  • Sample n°10083 : crust of white scalenohedral crystals (1 cm)
    Minerals: CALCITE
    Year: 1963
    Country: Congo (RDC)
  • Sample n°10084 : iceland spar (5 cm)
    Minerals: CALCITE
    Year: 1963
    Country: Congo (RDC)
  • Sample n°10085 : cluster of tranparent crystals
    Minerals: CALCITE
    Year: 1963
    Country: Congo (RDC)
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