Mineralogy Database

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442 samples matching your criteria

  • Sample n°5349 : scalenohedral calcite crystals (2 cm) in geode in breccious sandstone sample
    Minerals: CALCITE
    Year:
    Country: Congo (RDC)
  • Sample n°5577 : small olive green conichalcite crystals on bright calcite in core sample (sandstone)
    Minerals: CONICHALCITE CALCITE
    Year:
    Country: Congo (RDC)
  • Sample n°5674 : massive
    Minerals: CUPRITE MALACHITE
    Year:
    Country: Congo (RDC)
  • Sample n°5717 : star-shaped black manganese oxide aggregates, blue katangite coating, in core section (sandstone)
    Minerals: KATANGITE (plancheite) MANGANESE OXIDES
    Year:
    Country: Congo (RDC)
  • Sample n°5795 : grey calcite crystals (2 cm), yellow mottramite powder, in core section (sandstone)
    Minerals: CALCITE MOTTRAMITE
    Year:
    Country: Congo (RDC)
  • Sample n°5799 : small crystals in geode, in core section (sandstone)
    Minerals: CALCITE
    Year:
    Country: Congo (RDC)
  • Sample n°5800 : grey crystals (4 mm) in geode, in core section (sandstone)
    Minerals: CALCITE
    Year:
    Country: Congo (RDC)
  • Sample n°5819 : mass of pink crystals with prominent cleavage
    Minerals: MICROCLINE
    Year: 1955
    Country: Congo (RDC)
  • Sample n°5830 : white chevretite crystals (5 mm), yellow mottramite crust
    Minerals: CHERVETITE MOTTRAMITE
    Year:
    Country: Congo (RDC)
  • Sample n°5834 : sawn block (20 cm), septarian concretion
    Minerals: CHALCEDONY (quartz)
    Year:
    Country: Congo (RDC)
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