Calcite
Torr Works Quarry (Merehead Quarry), Cranmore, Somerset, England, UK
Crystals ~ 6 mm on edge in a cavity in Mn-oxides. FOV ~ 45 mm across. (Author: Andy Lawton)
| Dimensiones: | 711 x 474 |
| Tamaño fichero: | 93.33 kbytes |
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