Robuta

https://scholarsmine.mst.edu/chem_facwork/1283/ "Xenon in the Inclusions of Canyon Diablo and Toluca Iron Meteorites" by Emmit Calvin Alexander Jr.... The concentration and isotopic composition of xenon is reported in two samples of Canyon Diablo graphite and in three coexisting mineral phases from a silicate... in thecanyon diabloiron meteoritesxenoninclusions https://winter.group.shef.ac.uk/webelements/periodicity/abund_met_iron/period_7sp.html WebElements Periodic Table » Periodicity » Abundance in iron meteorites (by weight) » period 7sp This periodic table page contains periodicity information for periodic tableiron meteoritesby weightperiodicityabundance