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Fig. 5

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Top: core densities vs. fO2 for compositions considered in this study compared to densities of minerals, meteorites, and Psyche. Bottom: change in bulk density for different amounts of mantle stripping. Densities are calculated by mass balance. Sources of initial densities: meteoritic (Britt et al. 2002; Macke et al. 2011; Ostrowski & Bryson 2019), Psyche (Farnocchia et al. 2024), and minerals (Dziewonski & Anderson 1981; Hauck & Johnson 2019; Zhu et al. 2021). A density of 2.2 g/cm3 is the minimum plausible mantle density.

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