Mineralogy Database

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1547 samples matching your criteria

  • Sample n°19028 : large augite and leucite crystals in lava
    Minerals: AUGITE LEUCITE
    Year:
    Country: Rwanda
  • Sample n°19029 : abondant feldspar laths in vesicular lava
    Minerals: FELDSPAR
    Year:
    Country: Rwanda
  • Sample n°19030 : large crystals in pale matrix
    Minerals: AUGITE
    Year:
    Country: Rwanda
  • Sample n°19031 : abundant large crystals in matrix
    Minerals: AUGITE
    Year:
    Country: Rwanda
  • Sample n°19330 : coarse-crystalline vein
    Minerals: FERBERITE
    Year: 2020
    Country: Rwanda
  • Sample n°19331 : group of crystals with porous interior
    Minerals: FERBERITE
    Year: 2020
    Country: Rwanda
  • Sample n°19332 : ferberite alteration, var ferrotungstite
    Minerals: FERBERITE HYDROKENOELSMOREITE
    Year: 2020
    Country: Rwanda
  • Sample n°19333 : large crystal
    Minerals: CASSITERITE
    Year: 2020
    Country: Rwanda
  • Sample n°19334 : coarse-crystalline fragments
    Minerals: CASSITERITE
    Year: 2020
    Country: Rwanda
  • Sample n°19335 : cleavage fragments
    Minerals: COLUMBITE
    Year: 2020
    Country: Rwanda
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