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Calcite
Blaengwynlais Quarry, Bwlch-y-cwm, Cardiff, Wales, UK
120mm calcite crystal showing different growth phases, the latter white calcite partially coating an earlier crystal darkened by ironstaining. Collected 1979. (Author: ian jones)
| Dimensiones: | 800 x 600 |
| Tamaño fichero: | 61.05 kbytes |
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