Mineralogy Database

2 samples matching your criteria

• Sample n°6822 : black needles in geode with siderite on block (9 cm)
  Minerals: CRONSTEDTITE PYRITE SIDERITE

  Year: 1954

  Country: Czech Republic
• Sample n°14450 : black crystals
  Minerals: CORUNDUM CRONSTEDTITE

  Year: 1986

  Country: France