Chromium, vanadium, and titanium valence systematics in Solar System pyroxene as a recorder of oxygen fugacity, planetary provenance, and processes
James J. Papike, Steven B. Simon, Paul V. Burger, Aaron S. Bell, Charles K. Shearer and James M. Karner American Mineralogist doi: 10.2138/am-2016-5507 v. 101 no. 4 p. 907-918 LINK “Pyroxene is arguably the most…































