Eisenkiesel from Harz Mountains, Germany
Germany | |
| Weiß, Stefan (1990) Mineralfundstellen Atlas Deutschland West. Christian Weise Verlag, Munich, Germany. 320pp. |
| Andreas Gerstenberg collection |
Germany | |
| Weiß, Stefan (1990) Mineralfundstellen Atlas Deutschland West. Christian Weise Verlag, Munich, Germany. 320pp. |
| Andreas Gerstenberg collection |
Diabasweg Quarry, Hut valley, Clausthal-Zellerfeld, Goslar District, Lower Saxony, Germany