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Calcite, apophyllite
Onion River roadcut, Lutsen Township, Cook County, Minnesota
3.5 X 3 X 3 cm
Close-up of apophyllite on calcite, apos are about 4 - 5 mm (Author: John Nash)
| Dimensiones: | 750 x 705 |
| Tamaño fichero: | 59.36 kbytes |
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