AM_Ferro-actinolite_1 Formula: Fe4.104 Mn.18 Mg.742 Ti.004 Ca1.952 Na.024 Si7.98 Al.02 K.048 H1.868 O24 F.01 Cl.006 Name: Ferro-actinolite Unit cell: 9.986 18.296 5.306 90.0 104.79 90.0 , V=937.31 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: C80, NMNH 168215, from Goose Creek Quarry, Leesburg, Virginia,, in an alteration of hornblende, after heating at 700 C