Ages for Natrolite at Piz Sella, Plan De Gralba (Kreuzboden), Selva Di Val Gardena (Wolkenstein In Gröden), Gardena Valley (Gröden Valley), Bolzano-Alto Adige Autonomous Province, Trentino-Alto Adige, Italy

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 260Ma - 260Ma at this locality