Structure of Mercury

#5

Mercury’s composition is approximately 70% and 30% silicate substances. The core is believed to have an abundance of iron because of its high density.

As for its internal structure, many geologists believe that Mercury’s core comprises around 42% of the planet’s volume, making it around 1,800 kilometers in radius. The mantle, which consists of silicate materials, surrounds the core and is around 500 to 700 kilometers thick.