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Hierarchical browse (Geography) >> Rwanda >> Gisenyi >> < Unspecified >

3 samples matching your criteria

• Sample n°389 : black prismatic crystals (2 cm) in quartz debris
  Minerals: TOURMALINE

  Year:

  Country: Rwanda
• Sample n°2023 : black spots and dull shapeless crystals in pegmatite
  Minerals: BERYL TOURMALINE

  Year:

  Country: Rwanda
• Sample n°15969 : dark blue veins in white matrix
  Minerals: AMBLYGONITE SCORZALITE

  Year:

  Country: Rwanda

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