Mineralogy Database

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2 samples matching your criteria

  • Sample n°11073 : fragments of light brownish to yellowish material
    Minerals: AGATE (quartz)
    Year: 1966
    Country: Saint Helena (UK)
  • Sample n°11074 : black manganese ore, partly with thick fibrous coating with fine surface texture
    Minerals: PYROLUSITE
    Year: 1966
    Country: Saint Helena (UK)
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