Citation: Ganguly, J.; Ghose, S. (1979). Aluminous orthopyroxene: Order-disorder, thermodynamic properties, and petrologic implications. Contributions to Mineralogy and Petrology (23,1969-), 69, pp. 375-385.
Formula: Al0.088 Mg0.956 O3 Si0.956
Chemical name:(Mg0.956 Al0.044) (Al0.044 Si0.956 O3)