AM_Hornblende_1
Formula: Al2.42 Si6.44 Fe1.884 Mg2.186 Ti.07 Ca1.806 Na.664 O24 H1.78
Name: Hornblende
Unit cell: 9.803 18.046 5.313 90.0 105.05 90.0 , V=907.66
Space group: C12/M1 (12)

Phillips M W , Draheim J E , Popp R K , Clowe C A , Pinkerton A A , American Mineralogist , 74 (1989) p.764-773, Effects of oxidation-dehydrogenation in tschermakitic hornblende, sample H-11, after annealing at 650 C, 1 kbar