AM_Sursassite_2 Formula: Mn2.17 Al2.83 Si3 O14 H3 Name: Sursassite Unit cell: 8.7 5.79 9.78 90.0 108.9 90.0 , V=466.09 Space group: P121/M1 (11)

Mellini M , Merlino S , Pasero M , Physics and Chemistry of Minerals , 10 (1984) p.99-105, X-ray and HRTEM study of sursassite: crystal structure,, stacking disorder, and sursassite-pumpellyite intergrowth