AM_Stokesite Formula: Ca Sn Si3 O11 H4 Name: Stokesite Unit cell: 14.465 11.625 5.235 90.0 90.0 90.0 , V=880.29 Space group: PNNA (52)

Vorma A , Mineralogical Magazine , 33 (1963) p.615-617, Crystal structure of stokesite, CaSnSi3O9*2H2O