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Mercury is classed as a rocky body like the Earth. Its core (about 1800 kilometers in radius) is likely almost all iron. The mantle (about 600 kilometers thick) contains mostly silicates, as does the relatively thin crust.

Overall, the best estimates are that 70% of the planet's mass is iron and the other 30% is silicate material.

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11y ago
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4mo ago

The most common composite of Mercury is cinnabar, which is the naturally occurring form of mercury sulfide. Mercury can also form composites with other elements, such as mercury oxide and mercury chloride.

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12y ago

There is no mercury in Mercury. Atmospheric Composition of Mercury: 42% Molecular oxygen 29.0% sodium 22.0% hydrogen 6.0% helium 0.5% potassium Trace amounts of argon, nitrogen, carbon...

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Q: What is the composite of mercury?
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