AM_Foshagite
Formula: Ca4 Si3 O11 H2
Name: Foshagite
Unit cell: 10.32 7.36 7.04 90.0 106.4 90.0 , V=512.97
Space group: P1-11 (1)

Gard J A , Taylor H F W , Acta Crystallographica , 13 (1960) p.785-793, The crystal structure of foshagite, Locality: Crestmore, California, USA