AM_Kyanite_2 Formula: Al2 Si O5 Name: Kyanite Unit cell: 7.1582 7.8821 5.6089 89.9 101.21 105.98 , V=297.98 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 = 600 deg C