Vlasovite

*from Kipawa Complex, Sheffield Lake, Quebec, Canada.
*35 x 35 x 45mm.

Transparent gray vlasovite on pink eudialyte. The white is probably gittensite(?). The tag also says there is agrellite and catapleeite. 

The vlasovite is yellow under shortwave.

Ex; Hewin's Minerals of Chartley, MA.