MINERALOGY
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ATHENA
MINERALOGY |
| Mineral: | FRANCONITE |
| Formula: | Na2Nb4O11 · 9H2O |
| Crystal System: | Monoclinic |
| Strunz Nr: | 4/D.06-40 |
| Group: | Franconite Group |
| References: | CM 22 (1984), 239; HB3 (1997) |
| Type Locality: | Francon quarry, St-Michel distr., Montreal Island, Québec, Canada |
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