Mineralogy Database

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7938 samples matching your criteria

  • Sample n°1663 : needle-shaped crystals, graphic texture, var. delessite
    Minerals: CHAMOSITE TREMOLITE
    Year:
    Country: Congo (RDC)
  • Sample n°1664 : ferruginous substrate with black coatings
    Minerals: GOETHITE MANGANESE OXIDES
    Year:
    Country: Congo (RDC)
  • Sample n°1665 : black needles (4 cm) in pegmatite
    Minerals: TOURMALINE
    Year:
    Country: Congo (RDC)
  • Sample n°1668 : concretionary block (15 cm)
    Minerals: CALCITE
    Year:
    Country: Congo (RDC)
  • Sample n°1669 : encrustation around spring (7 cm)
    Minerals: CALCITE
    Year:
    Country: Congo (RDC)
  • Sample n°1671 : crystals (1 cm)
    Minerals: AUGITE
    Year:
    Country: Congo (RDC)
  • Sample n°1672 : star-shaped aggregates of fibres (2 cm) in lava
    Minerals: ZEOLITE
    Year:
    Country: Congo (RDC)
  • Sample n°1673 : reworked crystal (12 cm)
    Minerals: CASSITERITE
    Year:
    Country: Congo (RDC)
  • Sample n°1674 : brown crystals (2 cm)
    Minerals: CASSITERITE
    Year:
    Country: Congo (RDC)
  • Sample n°1675 : needles (mm) in micaschist
    Minerals: TOURMALINE
    Year:
    Country: Congo (RDC)
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