AM_Hatrurite_1
Formula: Ca27 Si9 O45
Name: Hatrurite
Unit cell: 33.083 7.027 18.499 90.0 94.12 90.0 , V=4289.43
Space group: C1M1 (8)

Nishi F , Takeuchi Y , Maki I , Zeitschrift fur Kristallographie , 172 (1985) p.297-314, Tricalcium silicate Ca3O[SiO4]: The monoclinic superstructure, Locality: synthetic