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Pyrite and nontronite
Sugar Grove, Pendleton County, West Virginia, USA
A right-angle pyrite bar mostly coated with nontronite. The bar is 0.9 mm tall. (Author: Pete Richards)
| Dimensiones: | 600 x 450 |
| Tamaño fichero: | 38.33 kbytes |
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| Velocidad obturador: | |
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