AM_Siderophyllite_2 Formula: Si3.056 Al1.753 Li.416 Fe1.48 Mn.078 Ti.108 Mg.054 (Na.014 K.986) O10.92 F1.08 H.284 Name: Siderophyllite Unit cell: 5.339 9.233 10.135 90.0 100.73 90.0 , V=490.87 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: 47