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Prehnite, Epidote, Fluorite
Quarries on gneiss, Arvigo, Calanca Valley, Mesolcina Valley, Grischun (Grisons; Graubünden), Switzerland
2,5 x 2 cm
(Author: Volkmar Stingl)
| Dimensions: | 1600 x 1200 |
| File size: | 327.98 kbytes |
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