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Calcite, siderite, quartz
Neudorf, Harz Mountains, Saxony-Anhalt, Germany.
6,8 x 4,2 cm
3 cm crystal on siderite with Bergakademie Freiberg label (1940-1950). (Author: Andreas Gerstenberg)
| Dimensions: | 512 x 435 |
| File size: | 20.26 kbytes |
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