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Fluorite
Minerva I Mine, Rosiclare formation, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois, USA
3 x 4.5 x 3 cm / main crystal: 3.2 cm.
(Author: MIM Museum)
| Dimensions: | 1600 x 1280 |
| File size: | 356.22 kbytes |
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