AM_Chkalovite
Formula: Be Si2 Na2 O6
Name: Chkalovite
Unit cell: 21.1 21.1 6.87 90.0 90.0 90.0 , V=3058.59
Space group: FDDD (70)

Pyatenko Y A , Bokii G B , Belov N V , Doklady Akademii Nauk SSSR , 108 (1956) p.1077-1080, The X-ray analysis of the crystal structure of chkalovite