AM_Tremolite
Formula: Si8 Mg5 Ca2 O24 H2
Name: Tremolite
Unit cell: 9.86 18.118 5.285 90.0 104.57 90.0 , V=913.77
Space group: C12/M1 (12)

Sueno S , Cameron M , Papike J J , Prewitt C T , American Mineralogist , 58 (1973) p.649-664, The high temperature crystal chemistry of tremolite, T = 400 C