Mineralogy Database

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456 samples matching your criteria

  • Sample n°1518 : black spots in altered granular quartz matrix
    Minerals: CASSITERITE WOLFRAMITE QUARTZ
    Year: 1944
    Country: Congo (RDC)
  • Sample n°1521 : alluvial pebbles (2 cm)
    Minerals: CASSITERITE
    Year: 1944
    Country: Congo (RDC)
  • Sample n°1522 : yellow topaz in altered pegmatite
    Minerals: TOPAZ MUSCOVITE QUARTZ
    Year: 1945
    Country: Congo (RDC)
  • Sample n°1527 : black crystals (2 cm) in vein quartz
    Minerals: CASSITERITE MUSCOVITE QUARTZ
    Year:
    Country: Congo (RDC)
  • Sample n°1530 : green crystals as crust and in geode in quartzite
    Minerals: MUSCOVITE
    Year:
    Country: Congo (RDC)
  • Sample n°1531 : brown concentrate (1-15 mm)
    Minerals: CASSITERITE
    Year:
    Country: Congo (RDC)
  • Sample n°1544 : reworked grey crystals (4 cm)
    Minerals: CASSITERITE
    Year:
    Country: Congo (RDC)
  • Sample n°1546 : ochre brown concentrate (1-10 mm)
    Minerals: CASSITERITE
    Year:
    Country: Congo (RDC)
  • Sample n°1805 : altered black plate-shaped crystals (10 cm)
    Minerals: BIOTITE
    Year:
    Country: Congo (RDC)
  • Sample n°1807 : brown cassiterite concentrate (5 mm), black tantalite plates (2 cm), with polished section
    Minerals: CASSITERITE TANTALITE
    Year:
    Country: Congo (RDC)
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