Manganese Oxides from Upper Franconia, Bavaria, Germany
Germany | |
| [var. Manganese Dendrites] F. Müller: "Bayerns steinreiche Ecke", 2nd ed., Oberfränkische Verlagsanstalt (Hof), 1984 |
| [var. Manganese Dendrites] F. Müller: "Bayerns steinreiche Ecke", 2nd ed., Oberfränkische Verlagsanstalt (Hof), 1984 |