AM_Hydrogarnet_5 Formula: Ca3 Al3.5 O12 H9.785 Name: Hydrogarnet Unit cell: 12.374 12.374 12.374 90.0 90.0 90.0 , V=1894.66 Space group: IA-3D (230)

Schropfer L , Bartl H , European Journal of Mineralogy , 5 (1993) p.1133-1144, Oriented decomposition and reconstruction of hydrogarnet, Ca3.Al2.(OH)12, Sample: specimen C12A7H15, intermediate phase resulting from the, decomposition of hydrogarnet. Ca12Al14O33(H2O)15