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Prehnite
Knife River, St. Louis County, Minnesota, USA
Field of view 2.5 cm
Most remarkable iridescent orange prehnite, metallic blue and purple flashes are amazing in person. I’ve found only a few examples in 5 years of visiting the locale. (Author: John Nash)
| Dimensiones: | 750 x 499 |
| Tamaño fichero: | 63.67 kbytes |
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