AM_Actinolite_15 Formula: Fe2.823 Mn.336 Mg1.979 Al.282 Ti.006 Ca1.736 Na.176 Si7.792 K.024 H1.894 O23.952 F.048 Name: Actinolite Unit cell: 9.89 18.194 5.306 90.0 104.62 90.0 , V=923.84 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: C59, AMNH 44973, from Cumberland, Rhode Island in a quartzite, after heating at 700 C