| Smaragdstraße |
Bildrechte: <a rel="nofollow" href="https://commons.wikimedia.org/wiki/User:G%C3%A9ry_PARENT">Géry PARENT</a>, <a rel="nofollow" href="https://commons.wikimedia.org/wiki/File:Émeraude,_calcite_300.4.1981.jpg">Émeraude, calcite 300.4.1981</a>, <a rel="nofollow" href="https://creativecommons.org/licenses/by-sa/4.0/legalcode" rel="license">CC BY-SA 4.0</a>