Mineralogy Database

2 samples matching your criteria

• Sample n°301 : small clear crystals
  Minerals: QUARTZ

  Year: 1912

  Country: Congo (RDC)
• Sample n°303 : pieces with earthy yellow coatings (natrojarosite)
  Minerals: GYPSUM NATROJAROSITE

  Year: 1904

  Country: Congo (RDC)