AM_Eudidymite_2 Formula: Na2 Be2 Si6 O16 H2 Name: Eudidymite Unit cell: 12.6188 7.3781 13.994 90.0 103.762 90.0 , V=1265.48 Space group: C12/C1 (15)

Gatta G D , Rotiroti N , McIntyre G J , Guastoni A , Nestola F , American Mineralogist , 93 (2008) p.1158-1165, New insights into the crystal chemistry of epididymite and eudidymite, from Malosa, Malawi: A single-crystal neutron diffraction study, Locality: Malosa, Malawi