Mineralogy Database

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4831 samples matching your criteria

  • Sample n°1771 : concretionary
    Minerals: PYROLUSITE
    Year:
    Country: Congo (RDC)
  • Sample n°1772 : concretionary
    Minerals: PYROLUSITE MANGANITE
    Year:
    Country: Congo (RDC)
  • Sample n°1774 : grey block, strongly altered
    Minerals: MANGANESE OXIDES
    Year:
    Country: Congo (RDC)
  • Sample n°1775 : rust-coloured powdery impregnation in pegmatite
    Minerals: HEMATITE VARISCITE
    Year:
    Country: Congo (RDC)
  • Sample n°1776 : grey powdery block
    Minerals: MANGANESE OXIDES
    Year:
    Country: Congo (RDC)
  • Sample n°1777 : black and pink impregnations
    Minerals: VARISCITE MANGANESE OXIDES
    Year:
    Country: Congo (RDC)
  • Sample n°1779 : black minerals in micaceous pegmatite
    Minerals: MANGANESE OXIDES
    Year:
    Country: Congo (RDC)
  • Sample n°1780 : plate-shaped crystals, with iron oxides
    Minerals: MUSCOVITE
    Year:
    Country: Congo (RDC)
  • Sample n°16004 : dark purple crystals in pegmatite
    Minerals: SPODUMENE
    Year:
    Country: Congo (RDC)
  • Sample n°16006 : coarse-crysrtalline block
    Minerals: MICROCLINE
    Year:
    Country: Congo (RDC)
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