AM_Sursassite_3 Formula: Mn2 Al3 Si3 O14 H3 Name: Sursassite Unit cell: 8.7201 5.8053 9.8075 90.0 109.011 90.0 , V=469.40 Space group: P121/M1 (11)

Nagashima M , Akasaka M , Minakawa T , Libowitzky E , Armbruster T , American Mineralogist , 94 (2009) p.1440-1449, Sursassite: hydrogen bonding, cation order, and pumpellyite intergrowth, Locality: Falotta, Switzerland, Sample Number: 1