AM_Kyanite_1 Formula: Al2 Si O5 Name: Kyanite Unit cell: 7.1423 7.8724 5.5968 89.94 101.18 105.99 , V=296.32 Space group: P-1 (2)

Winter J K , Ghose S , American Mineralogist , 64 (1979) p.573-586, Thermal expansion and high-temperature crystal chemistry of the Al2SiO5, polymorphs, T = 400 deg C