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

Apr 30, 2008 ... Astronomers have estimated that the Mercury composition is made up of approximately 70% metals and 30% silicate material. In fact, it's only ...

https://www.universetoday.com/34021/what-is-mercury-made-of/

Jul 3, 2009 ... How does Mercury's composition compare to the other planets in the ... Mercury has a large core of liquid metal surrounded by a mantle of silica ...

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 features indicate that volcanic activity once existed at the surface.

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

Apr 25, 2019 ... Overview. The smallest planet in our solar system and nearest to the Sun, Mercury is only slightly larger than Earth's Moon. From the surface 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 ...

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 ...

http://spaceref.com/mercury/the-chemical-composition-of-mercury.html

Dec 11, 2017 ... Mercury's composition. The chemical composition of a planetary body reflects its starting conditions modified by numerous processes during its ...

http://planetfacts.org/what-is-mercury-made-of/

As for knowing the actual composition of Mercury's interior, it is still quite difficult to fully ascertain. Scientists do know that its density is about 5.427 grams per ...

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

Mercury - Surface composition: Messenger used X-ray fluorescence spectra to study the surface composition of Mercury. It found a high ratio of magnesium to ...