Citation: Mantovani, L.; Tribaudino, M.; Mezzadri, F.; Calestani, G.; Bromiley, G. (2013). The structure of (Ca,Co)CoSi2O6 pyroxenes and the Ca-M2+ substitution in (Ca,M2+)M2+Si2O6 pyroxenes (M2+=Co,Fe,Mg) Sample: Ca0.6Co0.4. American Mineralogist, 98, pp. 1241-1252.