ATHENA MINERALOGY |
Mineral: | FRANCONITE |
---|---|
Formula: | Na2Nb4O11.9H2O |
Crystal System: | Monoclinic |
Group: | Franconite group |
IMA Number: | 1981-006a |
References: | CM 22 (1984), 239; HB3 (1997) |
Type Locality: | Francon quarry, St-Michel distr., Montreal Island, Québec, Canada |
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