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Smultronställe
The inner core is mostly made of a combination of iron and nickel.

Also, there are small amounts of other dense elements like gold, platinum, and uranium!

I hope this answer was helpful!! :)
At the center of the Earth is the core, which has two parts. The solid, inner core of iron has a radius of about 760 miles (about 1,220 km). It is surrounded by a liquid, outer core composed of a nickel-iron alloy.

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