AM_Kilchoanite
Formula: Ca3 Si2 O7
Name: Kilchoanite
Unit cell: 11.42 5.09 21.95 90.0 90.0 90.0 , V=1275.91
Space group: I2CM (46)

Taylor H F W , Mineralogical Magazine , 38 (1971) p.26-31, The crystal structure of kilchoanite, Ca6(SiO4)(Si3O10), with, some comments on related phases, Locality: Kilchoan, Ardnamurchan, Scotland