AM_Siderophyllite_3 Formula: Si3.224 Al1.678 Li.621 Fe1.314 Mn.051 Mg.022 Na.036 Rb.002 K.985 O10.706 F1.294 H.154 Name: Siderophyllite Unit cell: 5.3 9.144 10.089 90.0 100.74 90.0 , V=480.38 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: 103