AM_Actinolite_17
Formula: Fe3.17 Mn.092 Mg1.906 Ca1.814 Na.038 Si7.972 Al.028 K.004 H1.872 O23.926 F.048 Cl.026
Name: Actinolite
Unit cell: 9.903 18.211 5.299 90.0 104.64 90.0 , V=924.61
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: C51, ID4-4C, from Isua Belt, East Greenland, in an iron formation, after heating at 700 C