AM_Tremolite_2
Formula: Si8 Mg5 Ca2 O22 F2
Name: Tremolite
Unit cell: 9.787 18.004 5.263 90.0 104.44 90.0 , V=898.07
Space group: C12/M1 (12)

Cameron M , Gibbs G V , American Mineralogist , 58 (1973) p.879-888, The crystal structure and bonding of fluor-tremolite: A comparison with hydroxyl, tremolite