Mineralogy Database

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1151 samples matching your criteria

  • Sample n°20340 : core section, with high macroporosity
    Minerals: CRYPTOMELANE
    Year: 2017
    Country: Congo (RDC)
  • Sample n°20341 : purple coating
    Minerals: VARISCITE
    Year: 2017
    Country: Congo (RDC)
  • Sample n°20342 : large crystals with banded pattern, in polished sections
    Minerals: TEPHROITE
    Year: 2017
    Country: Congo (RDC)
  • Sample n°20343 : pinkish Mn-bearing calcite, coarse-crystalline
    Minerals: CALCITE
    Year: 2017
    Country: Congo (RDC)
  • Sample n°20344 : massive blocks
    Minerals: AMBLYGONITE
    Year: 2020
    Country: Rwanda
  • Sample n°20345 : massive blocks
    Minerals: HETEROSITE PURPURITE
    Year: 2020
    Country: Rwanda
  • Sample n°20346 : massive, with scattered thin managanite coatings
    Minerals: CRYPTOMELANE MANGANITE
    Year: 2017
    Country: Congo (RDC)
  • Sample n°20347 : botryoidal crust
    Minerals: CRYPTOMELANE
    Year: 2017
    Country: Congo (RDC)
  • Sample n°17622 : black elongated crystals in dolerite specimen
    Minerals: TOURMALINE
    Year: 2017
    Country: Congo (RDC)
  • Sample n°16709 : green mica on quartz
    Minerals: MICA
    Year:
    Country: Congo (RDC)
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