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Apophyllite on calcite
Onion River, near Lutsen, Cook County, Minnesota, USA
6.5 X 4 X 4 cm
A fine calcite crystal with a number of clear apophyllites on it. (Author: John Nash)
| Dimensiones: | 607 x 750 |
| Tamaño fichero: | 43.85 kbytes |
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