Figure F14. The minor elements Ti, Al, Mn, Na, and Cr (cations per formula unit) in clinopyroxenes as a function of Mg/(Mg + Fe2+) with Fe2+ and Fe3+ estimated from charge balancing the cations. Pyroxenes with <10 wt% CaO are not included. opx = orthopyroxene. The lithologic grouping is the same as those for previous figures.

Figure F14. The minor elements Ti, Al, Mn, Na, and Cr (cations per formula unit) in clinopyroxenes as a function of Mg/(Mg + Fe²⁺) with Fe²⁺ and Fe³⁺ estimated from charge balancing the cations. Pyroxenes with <10 wt% CaO are not included. opx = orthopyroxene. The lithologic grouping is the same as those for previous figures.