Mineralogy Database

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115 samples matching your criteria

  • Sample n°14172 : lot of rough stones with various colours and one bright blue cut stione (0.23 g), var. sapphire
    Minerals: CORUNDUM
    Year: 1983
    Country: India
  • Sample n°14173 : one blue rough stone (0.22 g) and one polished stone (0.55 g), var. sapphire
    Minerals: CORUNDUM
    Year: 1983
    Country: India
  • Sample n°14174 : blue rough stone (0.22 g), polished stone (0.55 g), var. sapphire
    Minerals: CORUNDUM
    Year: 1983
    Country: India
  • Sample n°14175 : two blue cut stones with impurities (0.38 g, 1.14 g), var. sapphire
    Minerals: CORUNDUM
    Year: 1983
    Country: Sri Lanka
  • Sample n°14199 : black amphibolite (8 cm) with crystals, coarse gravel, one crystal in gangue material, one hexagonal primsatic crystal, one red cut stone (0.29 g) and cabochon cut stone (2.02 g), var. ruby
    Minerals: CORUNDUM
    Year: 1983
    Country: India
  • Sample n°14450 : black crystals
    Minerals: CORUNDUM CRONSTEDTITE
    Year: 1986
    Country: France
  • Sample n°14461 : granular aggregate, with blue corundum, var. sapphire
    Minerals: CORUNDUM DIASPORE
    Year: 1987
    Country: Congo (RDC)
  • 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°14492 : var. ruby (5.19 ct), shaped
    Minerals: CORUNDUM
    Year: 1992
    Country: Tanzania
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