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Something for the quartz collectors: orange chalcedony layered on quartz in form of dauphiné penetration twins from a new find at the Segen Gottes mine, Gersdorf, Freiberg district, Erzgebirge, Saxony. 7 cm in width. (Author: Andreas Gerstenberg)
| Dimensiones: | 600 x 450 |
| Tamaño fichero: | 20.5 kbytes |
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