Mineralogy Database

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50 samples matching your criteria

  • Sample n°9392 : feldspar with saccharoidal texture, with pervasive black schorl
    Minerals: SCHORL FELDSPAR
    Year:
    Country: Rwanda
  • Sample n°10669 : grey cryptocrystalline fragment with white crust
    Minerals: SPODUMENE FELDSPAR
    Year:
    Country: Rwanda
  • Sample n°10770 : crystals in feldspar-bearing calcareous rock
    Minerals: AXINITE FELDSPAR
    Year: 1965
    Country: Burkina Faso
  • Sample n°10835 : obsidian with pink crystals
    Minerals: FELDSPAR
    Year: 1966
    Country: South Africa
  • Sample n°10842 : white block, with cleavage (12 cm)
    Minerals: FELDSPAR
    Year: 1930
    Country: Congo (RDC)
  • Sample n°11209 : bright white plate (20 cm)
    Minerals: FELDSPAR
    Year: 1966
    Country: Brazil
  • Sample n°11664 : pegmatitic texture
    Minerals: FELDSPAR QUARTZ
    Year: 1967
    Country: Austria
  • Sample n°12599 : brick-red crystal
    Minerals: FELDSPAR
    Year: 1957
    Country: Congo (RDC)
  • Sample n°12603 : aggregate of white crystals
    Minerals: FELDSPAR
    Year: 1971
    Country: Tanzania
  • Sample n°13519 : purplish blue crystalline mass
    Minerals: CORDIERITE FELDSPAR
    Year: 1978
    Country: Madagascar
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