AM_Vlasovite Formula: Na2 Zr Si4 O11 Name: Vlasovite Unit cell: 11.039 10.098 8.5677 90.0 100.313 90.0 , V=939.63 Space group: C12/C1 (15)

Sokolova E , Hawthorne F C , Ball N A , Mitchell R H , Della Ventura G , The Canadian Mineralogist , 44 (2006) p.1349-1356, Vlasovite, Na2Zr(Si4O11), from the Kipawa alkaline complex, Quebec, Canada:, Crystal-structure refinement and infrared spectroscopy, Locality: Kipawa alkaline complex, Quebec, Canada