Mineralogy Database

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2 samples matching your criteria

  • Sample n°7195 : small crystals in purple lava (4 cm)
    Minerals: FORSTERITE TRIDYMITE
    Year: 1959
    Country: USA
  • Sample n°12598 : white debris, incliding glass phase (var lechatellierite)
    Minerals: TRIDYMITE QUARTZ
    Year: 1971
    Country: Congo (RDC)
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