AM_Schallerite Formula: Mn16 Si12 As3 O57 H17 Name: Schallerite Unit cell: 13.42 13.42 14.32 90.0 90.0 120.0 , V=2233.46 Space group: P63 (173)

Kato T , Watanabe I , Yamaguchi University, College of Arts Bulletin , 26 (1992) p.51-63, The crystal structures of schallerite and friedelite, Locality: Franklin, New Jersey