The interior of Earth in Quran
In the Quran, iron is mentioned several times as a material that has been given to humans as a blessing from God. For example
We have already sent Our messengers with clear evidences and sent down with them the Scripture and the balance that the people may maintain [their affairs] in justice. And We sent down iron, wherein is great military might and benefits for the people, and so that Allah may make evident those who support Him and His messengers unseen. Indeed, Allah is Powerful and Exalted in Might.
- With a radius of almost 3,500 km (2,200 miles), Earth’s core is about the size of the entire planet Mars. About one-third of Earth’s mass is contained in the core, most of which is liquid iron alloyed with nickel and some lighter, cosmically abundant components (e.g., sulfur, oxygen, and, controversially, even hydrogen). Its liquid nature is revealed by the failure of shear-type seismic waves to penetrate the core. A small, central part of the core, however, below a depth of about 5,100 km (3,200 miles), is solid iron.
Reference : Britannica, Earth The Interior, 2019
The Quran is considered to be a book of signs or “ayahs” by Muslims. The word “ayah” literally means “a sign” or “a miracle” in Arabic. The Quran is believed to contain many signs or miracles, which can be seen as both literal and metaphorical. These signs are believed to provide evidence of the Quran’s divine origin and to serve as guidance for those who read it. Muslims believe that the Quran contains a variety of signs and miracles, such as the creation of the universe, the formation of the human being, and the stories of the prophets.