Opal from Dietesheim, Mühlheim am Main, Offenbach, Darmstadt, Hesse, Germany
Germany | |
| [Opal-A var. Opal-AN] Weiß, Stefan (1990) Mineralfundstellen Atlas Deutschland West. Christian Weise Verlag, Munich, Germany. 320pp. |
Germany | |
| [Opal-A var. Opal-AN] Weiß, Stefan (1990) Mineralfundstellen Atlas Deutschland West. Christian Weise Verlag, Munich, Germany. 320pp. |
Basalt quarries, Dietesheim, Mühlheim am Main, Offenbach, Darmstadt, Hesse, Germany