Mineralogy Database

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19 samples matching your criteria

  • Sample n°5845 : zoned pisoliths (1-3 cm)
    Minerals: CALCITE
    Year: 1952
    Country: Congo (RDC)
  • Sample n°5888 : black prismatic crystals (2 cm)
    Minerals: AUGITE
    Year: 1956
    Country: Tanzania
  • Sample n°8641 : pisoliths (2-5 cm), with zoning
    Minerals: CALCITE
    Year: 1960
    Country: Congo (RDC)
  • Sample n°8642 : white and beige fragments
    Minerals: AGATE (quartz) CHALCEDONY (quartz)
    Year: 1949
    Country: Congo (RDC)
  • Sample n°10748 : white powder
    Minerals: GYPSUM
    Year: 1964
    Country: Ecuador
  • Sample n°12602 : greenish translucent prismatic crystal (4 cm)
    Minerals: BERYL
    Year: 1971
    Country: Tanzania
  • Sample n°12603 : aggregate of white crystals
    Minerals: FELDSPAR
    Year: 1971
    Country: Tanzania
  • Sample n°12604 : aggregate of rust-coloured black prismatic crystals
    Minerals: TOURMALINE
    Year: 1971
    Country: Tanzania
  • Sample n°12605 : massive black block (12 cm)
    Minerals: ILMENITE
    Year: 1971
    Country: Tanzania
  • Sample n°12606 : sample with crust of orange phosphuranylite crystals, green meta-autunite, metamict zircon
    Minerals: PHOSPHURANYLITE META-AUTUNITE ZIRCON
    Year: 1971
    Country: Tanzania
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