Mineralogy Database

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24 samples matching your criteria

  • Sample n°6848 : black lava with white grains
    Minerals: LEUCITE
    Year: 1954
    Country: Germany
  • Sample n°6857 : green translucent crystalline blck (5 cm)
    Minerals: PREHNITE
    Year: 1954
    Country: Germany
  • Sample n°6890 : black-red biotitite (6 cm),var rubellane
    Minerals: BIOTITE
    Year: 1954
    Country: Germany
  • Sample n°9959 : anhedral black crystals, isolated from lava
    Minerals: AUGITE
    Year: 1963
    Country: Germany
  • Sample n°9960 : plate-shaped crystals (2-5 cm)
    Minerals: BIOTITE
    Year: 1963
    Country: Germany
  • Sample n°9961 : terminated black crystals (1-4 cm)
    Minerals: AUGITE
    Year: 1963
    Country: Germany
  • Sample n°11101 : rock with galenite spots
    Minerals: GALENA
    Year:
    Country: Germany
  • Sample n°11168 : nodules and banded geodes with calcite core in red rock substrate
    Minerals: CHALCEDONY (quartz) CALCITE
    Year: 1966
    Country: Germany
  • Sample n°11170 : black crystalline volcanic bomb (6 cm)
    Minerals: HORNBLENDE BIOTITE
    Year: 1966
    Country: Germany
  • Sample n°11172 : granular volcanic bombs (4 and 7 cm)
    Minerals: OLIVINE AUGITE HORNBLENDE
    Year: 1966
    Country: Germany
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