Mineralogy Database

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78 samples matching your criteria

  • Sample n°14450 : black crystals
    Minerals: CORUNDUM CRONSTEDTITE
    Year: 1986
    Country: France
  • Sample n°14489 : var. ruby (60.59 ct)
    Minerals: CORUNDUM
    Year: 1992
    Country: Tanzania
  • Sample n°14490 : var. ruby (8.01 ct)
    Minerals: CORUNDUM
    Year: 1992
    Country: Tanzania
  • Sample n°14491 : dark reddish fragments (2.76 ct)
    Minerals: GARNET
    Year: 1992
    Country: Tanzania
  • Sample n°14492 : var. ruby (5.19 ct), shaped
    Minerals: CORUNDUM
    Year: 1992
    Country: Tanzania
  • Sample n°15769 : coating on irregular substrate
    Minerals: ROSASITE
    Year: 1999
    Country: USA
  • Sample n°15770 : greenish blue veins
    Minerals: HALLOYSITE
    Year: 1999
    Country: USA
  • Sample n°15771 : brownish green coating, nodular aspect
    Minerals: VARISCITE
    Year: 1999
    Country: Poland
  • Sample n°15781 : small fragment with hydrozincite vein, fluorescent
    Minerals: HYDROZINCITE
    Year:
    Country: USA
  • Sample n°15782 : massive white opalite, with conchoidal fracture, mottled green fluorescence
    Minerals: unidentified
    Year:
    Country: Unknown
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