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Emerald (with some minor pyrite and calcite)
Chivor Mine, Mun. de Chivor, Guavió-Guatéque Mining District, Boyacá Department, Colombia
Specimen size 7 cm, largest crystal 2,5 cm (Author: Tobi)
| Dimensions: | 980 x 1080 |
| File size: | 216.7 kbytes |
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