Mineralogy Database

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288 samples matching your criteria

  • Sample n°6885 : grey debris
    Minerals: VERMICULITE
    Year: 1954
    Country: USA
  • Sample n°6896 : geodic block (8 cm) with grey crystals
    Minerals: FLUORAPOPHYLLITE
    Year: 1954
    Country: USA
  • Sample n°6903 : green clayey block (10 cm)
    Minerals: SEARLESITE
    Year: 1954
    Country: USA
  • Sample n°6904 : pale green geode (datolite) (10 cm), small yellow crystals (prehnite), white fibres (laumontite)
    Minerals: DATOLITE LAUMONTITE PREHNITE
    Year: 1954
    Country: USA
  • Sample n°6911 : white saccharoidal block (10 cm)
    Minerals: THAUMASITE
    Year: 1954
    Country: USA
  • Sample n°6919 : green veinlets in chert (6 cm)
    Minerals: TURQUOISE
    Year: 1954
    Country: USA
  • Sample n°6920 : green rosettes (cm) in purple clay
    Minerals: WAVELLITE
    Year: 1954
    Country: USA
  • Sample n°6928 : black earthy block (6 cm)
    Minerals: DUFRENITE
    Year: 1954
    Country: USA
  • Sample n°6931 : blue pyramidal crystals (cm) in greisen
    Minerals: LAZULITE
    Year: 1954
    Country: USA
  • Sample n°6942 : sample with francevillite as yellow impregnation in sandstone
    Minerals: FRANCEVILLITE
    Year: 1957
    Country: USA
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