Mineralogy Database

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17 samples matching your criteria

  • Sample n°8520 : altered plate-shaped crystals
    Minerals: MUSCOVITE
    Year:
    Country: Rwanda
  • Sample n°9252 : pegmatite with large elongated biotite crystals (4 cm)
    Minerals: BIOTITE
    Year:
    Country: Rwanda
  • Sample n°13301 : yellow crust on ferruginous substrate
    Minerals: PHARMACOSIDERITE SCORODITE
    Year: 1968
    Country: Rwanda
  • Sample n°16883 : pegmatite with well-developed tourmaline crystals
    Minerals: TOURMALINE
    Year: 1953
    Country: Rwanda
  • Sample n°16884 : pegmatite with abundant tourmaline crystals
    Minerals: TOURMALINE
    Year: 1953
    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
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