AM_Actinolite_6 Formula: Fe1.538 Mn.052 Mg3.364 Al.194 Ti.002 Ca1.922 Na.052 Si7.888 K.01 H1.92 O24 Name: Actinolite Unit cell: 9.881 18.139 5.298 90.0 104.78 90.0 , V=918.15 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: NMNH 156831, from Green Monster Mine, Alaska in uralite from cpx