Mineralogy Database

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1547 samples matching your criteria

  • Sample n°20001 : coarse-crystalline block
    Minerals: GALENA
    Year: 2023
    Country: Rwanda
  • Sample n°20002 : coarse-crystalline fragment
    Minerals: GALENA
    Year: 2023
    Country: Rwanda
  • Sample n°20038 : crystal group, grading to amethyst
    Minerals: QUARTZ
    Year: 2021
    Country: Rwanda
  • Sample n°20039 : crystal group, smoky quartz grading to amethyst
    Minerals: QUARTZ
    Year: 2021
    Country: Rwanda
  • Sample n°20259 : large prismatic crystals in gneissic granite matrix, polished surface
    Minerals: MICROCLINE
    Year: 1968
    Country: Rwanda
  • Sample n°20259 : large prismatic crystals in gneissic granite matrix, polished surface
    Minerals: MICROCLINE
    Year: 1968
    Country: Rwanda
  • Sample n°20322 : fragments (cm)
    Minerals: COLUMBITE TANTALITE
    Year: 2017
    Country: Rwanda
  • Sample n°20323 : quartz fragments with arsenopyrite masses
    Minerals: ARSENOPYRITE
    Year: 2017
    Country: Rwanda
  • Sample n°20324 : large cleavage fragments
    Minerals: GALENA
    Year: 2017
    Country: Rwanda
  • Sample n°20325 : massive
    Minerals: AMBLYGONITE MONTEBRASITE
    Year: 2017
    Country: Rwanda
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