AM_Actinolite_1 Formula: Fe.594 Mn.02 Mg4.43 Al.138 Ca1.774 Na.132 Si7.952 K.01 H1.976 O24 Name: Actinolite Unit cell: 9.833 18.078 5.282 90.0 104.58 90.0 , V=908.70 Space group: C12/M1 (12)

Evans B W , Yang H , American Mineralogist , 83 (1998) p.458-475, Fe-Mg order-disorder in tremolite-actinolite-ferro-actinolite at ambient, and high temperature, Sample: C78, NMNH 93728 from Greiner, Zillertal, Austria in act-talc rock, after heating at 700 C