ATHENA MINERALOGY |
Mineral: | UMBRIANITE |
---|---|
Formula: | K7Na2Ca2[Al3Si10O29]F2Cl2 |
Crystal System: | Orthorhombic |
IMA Number: | 2011-074 |
References: | EJM 25 (2013), 655 |
Type Locality: | Cava Vispi (Vispi quarry), San Venanzo, Terni, Umbria, Italy |
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