Mineralogy Database

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1097 samples matching your criteria

  • Sample n°13319 : bright yellow quartz nodules, white calcite aggregate
    Minerals: CALCITE QUARTZ
    Year: 1975
    Country: Congo (RDC)
  • Sample n°13341 : small crystals on quartz
    Minerals: GALENA QUARTZ
    Year:
    Country: Congo (RDC)
  • Sample n°13360 : massive purplish vein with spots of yellow mica (12 cm)
    Minerals: CASSITERITE MUSCOVITE QUARTZ
    Year: 1960
    Country: Rwanda
  • Sample n°13417 : prismatic crystals with iridescent surface in geode
    Minerals: QUARTZ HEMATITE
    Year: 1977
    Country: Congo (RDC)
  • Sample n°13429 : brown, massive, var. jasper
    Minerals: QUARTZ
    Year: 1976
    Country: Madagascar
  • Sample n°13435 : group of white terminated prismatic crystals
    Minerals: QUARTZ
    Year: 1976
    Country: Madagascar
  • Sample n°13439 : red block with conchoidal fracture, var. jasper
    Minerals: QUARTZ
    Year: 1976
    Country: Madagascar
  • Sample n°13488 : sample with uraninite (partly orange), gahnite as black material with greenish lustre and as white powder in centre of uraninite, massive yellow uranophane
    Minerals: GAHNITE URANINITE QUARTZ URANOPHANE
    Year: 1977
    Country: USA
  • Sample n°13500 : sample with green tabular metazeunerite crystals, blue-green mixite fibres, tabular baryte crystals in geode, purple roselite needles
    Minerals: METAZEUNERITE MIXITE BARYTE QUARTZ ROSELITE
    Year: 1977
    Country: Germany
  • Sample n°13509 : sample with uraninite, brown clarkeite in uraninite, massive yellow uranophane-beta, massive beige zircon
    Minerals: CLARKEITE URANINITE URANOPHANE-BETA QUARTZ ZIRCON
    Year: 1978
    Country: USA
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