Mineralogy Database

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953 samples matching your criteria

  • Sample n°3354 : clear crystal (5 cm)
    Minerals: TOPAZ
    Year: 1953
    Country: Rwanda
  • Sample n°4201 : unsorted black concentrate
    Minerals: COLUMBITE TANTALITE
    Year:
    Country: Rwanda
  • Sample n°4249 : white fragment (6 cm), with metallic lustre
    Minerals: BISMUTH
    Year: 1954
    Country: Rwanda
  • Sample n°4286 : metallic nodules in vein quartz
    Minerals: ARSENOPYRITE QUARTZ
    Year:
    Country: Rwanda
  • Sample n°4319 : grey prismatic crystal (1 cm)
    Minerals: RUTILE
    Year: 1954
    Country: Rwanda
  • Sample n°4322.1 : striated crystal (1 cm)
    Minerals: RUTILE
    Year: 1954
    Country: Rwanda
  • Sample n°4340 : black plate resembling a pottery fragment
    Minerals: CASSITERITE
    Year: 1954
    Country: Rwanda
  • Sample n°4341 : black xyloidal cassiterite in pegmatite (10 cm)
    Minerals: CASSITERITE
    Year: 1954
    Country: Rwanda
  • Sample n°4343 : black crystals (1 cm) in micaceous schist
    Minerals: CASSITERITE
    Year: 1954
    Country: Rwanda
  • Sample n°4352 : black octahedral crystals (2 cm) in pegmatite (8 cm)
    Minerals: CASSITERITE
    Year: 1954
    Country: Rwanda
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