- The Earth's crust and mantle have higher abundances of volatile elements like Na and K compared to the Moon due to greater depletion of these elements in the Moon's formation process.
- The Moon has higher abundances of refractory elements like Ca, Mg, and Ti compared to the Earth, indicating a retention of these elements during its formation.
- The Moon has a higher Si/Fe ratio, suggesting a more silica-rich composition likely due to preferential loss of iron-rich materials during formation.
- The Earth has a larger and more iron-rich core compared to the Moon, indicating a lower iron content in the Moon's core.