AM_Ephesite
Formula: Na Li Al4 Si2 O12 H2
Name: Ephesite
Unit cell: 5.123 8.872 19.307 89.97 95.15 89.96 , V=873.98
Space group: C1 (1)

Slade P G , Schultz P K , Dean C , Neues Jahrbuch fur Mineralogie, Monatshefte , 1987 (1987) p.275-287, Refinement of the ephesite structure in C1 symmetry, Note: polytype 2M1, Locality: Postmasburg, district, South Africa