Citation: Gatta, G.D.; Rinaldi, R.; Knight, K.S.; Molin, G.; Artioli, G. (2007). High temperature structural and thermoelastic behaviour of mantle orthopyroxene: an in-situ neutron powder diffraction study. Physics and Chemistry of Minerals (Germany), 34, pp. 185-200.
Formula: Fe0.15 Mg1.82 O6 Si2
Chemical name:(Mg0.919 Fe0.071) (Mg0.901 Fe0.079) Si2 O6