The principal geochemical reason we believe that these
stones are mutually paired is that for all of them
the concentrations of the "plagiophile" elements, Na and Eu , are
low, leading to higher Sm/Eu ratios
than any other basaltic lunar meteorite and any basalt from the Apollo collection.
In these plots, the olivine cumulate data are means
from 773, 2977, and 3333, the mare basalt data
are means from 3160 and 3333, the fragmental breccia data are means from 2727
and 3333, and
the regolith breccia data are from 773.
