Mineralogy Database

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176 samples matching your criteria

  • Sample n°16004 : dark purple crystals in pegmatite
    Minerals: SPODUMENE
    Year:
    Country: Congo (RDC)
  • Sample n°16006 : coarse-crysrtalline block
    Minerals: MICROCLINE
    Year:
    Country: Congo (RDC)
  • Sample n°16026 : crystal fragments
    Minerals: CASSITERITE COLUMBITE TANTALITE
    Year:
    Country: Congo (RDC)
  • Sample n°13621 : bright black block (6 cm)
    Minerals: ALLANITE-(Ce) CALCITE
    Year: 1980
    Country: Brazil
  • Sample n°13622 : mixed veins in pink syenite (12 cm)
    Minerals: MONAZITE ALLANITE-(Ce) FLUORAPATITE
    Year: 1980
    Country: Brazil
  • Sample n°13924 : sample grey microlite (partly white), yellow zircon
    Minerals: MICROLITE ZIRCON
    Year: 1982
    Country: Congo (RDC)
  • Sample n°13945 : quartz with earthy black ferberite masses, altered to yellow tungstite and white anthoinite, blocks of 8-15 cm
    Minerals: ANTHOINITE FERBERITE TUNGSTITE QUARTZ
    Year: 1982
    Country: Rwanda
  • Sample n°13946 : black crystals altered to yellow tungstite, in quartz matrix (7 cm)
    Minerals: FERBERITE TUNGSTITE
    Year: 1982
    Country: Rwanda
  • Sample n°14148 : yellow concentrate (1 mm)
    Minerals: MICROLITE
    Year: 1984
    Country: Rwanda
  • Sample n°14157 : grass-green crust in white marble (7 cm), var. lavrovite
    Minerals: DIOPSIDE
    Year: 1984
    Country: Russia
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