Cumulus Pyroxene in Shergotty: The Discrepancy Between Experimental and Observational Studies

While it is known that Zagami is heterogeneous, these inconsistencies may be due to such inappropriate experimental conditions as pressure. This study incorporates the use of experimental maps to test whether Shergotty shows a similar discrepancy. The proportion of cumulus pyroxene cores obtained is significantly lower than previously experimentally determined; it is shown that pigeonite is more than twice as abundant as augite.