https://www.space.com/18643-mercury-composition.html

Oct 14, 2016 ... Mercury is a terrestrial planet with a rocky surface and metallic core.

https://www.windows2universe.org/mercury/Interior_Surface/Overview.html

Aug 11, 2010 ... The composition of Mercury is probably high in iron, although surface ... and the metallic iron-nickel core is believed to make up about 75% of ...

https://www.universetoday.com/13992/composition-of-mercury/

Apr 30, 2008 ... Astronomers have estimated that the Mercury composition is made up of ... The core probably accounts to 42% of Mercury's volume, while Earth ...

https://solarsystem.nasa.gov/planets/mercury/in-depth/

Instead of an atmosphere, Mercury possesses a thin exosphere made up of atoms blasted off the surface by the solar wind and ...

https://en.wikipedia.org/wiki/Mercury_(planet)

Composition by volume. 42% molecular oxygen; 29.0% sodium; 22.0% hydrogen ; 6.0% helium; 0.5% potassium; Trace amounts of argon, nitrogen, carbon dioxide , water vapor, xenon, krypton, and neon. Mercury is the smallest and innermost planet in the Solar System. Its orbital period around the .... Mercury's core has a higher iron content than that of any other major planet ...

https://arxiv.org/abs/1712.02187

Dec 6, 2017 ... The bulk silicate composition of Mercury is likely similar to that of ... core is most likely Si rich, implying that in bulk Mercury is enriched in Fe and ...

https://www.britannica.com/place/Mercury-planet/Surface-composition

Mercury - Surface composition: Messenger used X-ray fluorescence spectra to ... into a less-dense crust and mantle of silicate rocks and a denser iron-rich core, ...

https://phys.org/news/2018-09-dense-metal-planets-mercury-rare.html

Sep 6, 2018 ... Not only does Mercury's core have a higher iron content that any other ... The purpose of this was to determine if Mercury's composition was the ...

https://www.sciencedirect.com/science/article/pii/S0012821X14000077

Mar 15, 2014 ... Except for core compositions with extreme abundances of Si, bulk Mercury compositions calculated by using the newly determined range of ...

http://coolcosmos.ipac.caltech.edu/ask/29-What-is-Mercury-made-of-

Mercury is a rocky planet with a huge iron core which makes up a large part of its interior. The core takes up nearly 3/4 of the planet's diameter. Mercury's iron ...