Mineralogy Database

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68 samples matching your criteria

  • Sample n°12051 : intergrowth of subhedral pyrrhotite and wolframite crystals, one polished surface
    Minerals: PYRRHOTITE WOLFRAMITE GARNET
    Year: 1969
    Country: Portugal
  • Sample n°12052 : pyrrhotite and wolframite in rock matrix, one polished surface
    Minerals: PYRRHOTITE WOLFRAMITE GARNET
    Year: 1969
    Country: Portugal
  • Sample n°12053 : cassiterite crystals in coarse-grained granite
    Minerals: CASSITERITE
    Year: 1969
    Country: Portugal
  • Sample n°12054 : massive coarse-grained intergrowths, one polished surface
    Minerals: CASSITERITE COLUMBITE TANTALITE
    Year: 1969
    Country: Portugal
  • Sample n°12055 : large anhedral crystals in quartz matrix
    Minerals: CASSITERITE WOLFRAMITE
    Year: 1969
    Country: Portugal
  • Sample n°12056 : coarse-grained aggregate of dark crystals
    Minerals: CASSITERITE WOLFRAMITE
    Year: 1969
    Country: Portugal
  • Sample n°12057 : coarse-grained intergrowth, one polished surface
    Minerals: CASSITERITE WOLFRAMITE
    Year: 1969
    Country: Portugal
  • Sample n°12060 : quartz vein with cassiterite and sulfides, well-developed zoning
    Minerals: BERYL CASSITERITE QUARTZ
    Year: 1969
    Country: Portugal
  • Sample n°12061 : fragments of beryl and cassiterite in quartz vein
    Minerals: BERYL CASSITERITE QUARTZ
    Year: 1969
    Country: Portugal
  • Sample n°12345 : bright black plates (2-4 cm)
    Minerals: COLUMBITE
    Year: 1970
    Country: Rwanda
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