Mercury's core has a diameter of about 3,600 miles (5,800 kilometers), which is roughly 85% of the planet's total diameter. It is composed mostly of iron and nickel, and is thought to be partially molten.
I believe it is Mercury. Mercurys core is 75 percent of its planet. Its core is made of Iron. You might want to do more research though I am not Exactly sure.
basalt and granite
mercurys surface material is made out of nothing but craters
The core of Mercury is very hot and not at all cold. The core is made up of iron rich ore which has an almost complete molten liquid global magentic field.
earth core is made of an alloy of.... MOSTLY IRON AND NICKEL
Inner core and outer core.
The core.
The core.
The core.
basalt and granite
The core.