Topaz from Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
Germany | |
| Hentschel, Gerhard (1983) Die Mineralien der Eifelvulkane (1st ed.) Christian Weise Verlag, Munich. |
| collection C.&H. Schäfer |
Germany | |
| Hentschel, Gerhard (1983) Die Mineralien der Eifelvulkane (1st ed.) Christian Weise Verlag, Munich. |
| collection C.&H. Schäfer |
Rothenberg Quarry, Bell, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany