AM_Siderophyllite Formula: Si3.236 Al1.743 Li.849 Fe.879 Mg.047 Mn.06 Na.014 K.954 O10.36 F1.64 H.248 Name: Siderophyllite Unit cell: 5.297 9.146 10.102 90.0 100.81 90.0 , V=480.72 Space group: C121 (5)

Brigatti M F , Lugli C , Poppi L , Foord E E , Kile D E , American Mineralogist , 85 (2000) p.1275-1286, Crystal chemical variations in Li- and Fe-rich micas from, Pikes Peak batholith (central Colorado), sample: 140(2)