Mineralogy Database

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64 samples matching your criteria

  • Sample n°6709 : earthy black block (6 cm)
    Minerals: PYROLUSITE
    Year: 1954
    Country: Portugal
  • Sample n°6791 : block (7 cm) with prismatic crystals of clear and smoky quartz, white microcline crust
    Minerals: QUARTZ MICROCLINE
    Year: 1954
    Country: Portugal
  • Sample n°6825 : black ore with bright prismatic and tabular crystals
    Minerals: WOLFRAMITE
    Year: 1954
    Country: Portugal
  • Sample n°10170 : bright black block (12 cm)
    Minerals: RIEBECKITE
    Year: 1954
    Country: Portugal
  • Sample n°11204 : massive with polished surface
    Minerals: PYRITE
    Year: 1966
    Country: Portugal
  • Sample n°11205 : sulfide debris (3 cm)
    Minerals: CHALCOPYRITE
    Year: 1966
    Country: Portugal
  • Sample n°11206 : bright black material
    Minerals: BOURNONITE MARCASITE
    Year: 1966
    Country: Portugal
  • Sample n°11207 : disseminated green and blue minerals in block (5-7 cm)
    Minerals: MALACHITE AZURITE
    Year: 1966
    Country: Portugal
  • Sample n°12050 : massive pyrrhotite-dominate block, one polished surface
    Minerals: PYRRHOTITE SCHEELITE WOLFRAMITE GARNET
    Year: 1969
    Country: Portugal
  • Sample n°12051 : intergrowth of subhedral pyrrhotite and wolframite crystals, one polished surface
    Minerals: PYRRHOTITE WOLFRAMITE GARNET
    Year: 1969
    Country: Portugal
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