By development of human scientific abilities, more miracle aspects and wonders of the Qur’an have been recognized. Stating the story of Dhu al-Qarnayn and constructing of dam, verses (Q. 18: 83-98) have pointed some valuable scientific aspects regarding chemistry, physics and metallurgy. The instruction for the structure reveals the non-accidental process, because the precise expected physical, chemical and metallurgical properties. The three-layer structures of dam with dendrite like microstructure in its matrix will guarantee the durable structure against most chemical destructive agent, mechanical damage and thermal threats. Hence the powerful people of Gog and Magog could not overcome the high tensile strength of iron, high ductility of copper and the high toughness of CuFe alloy. The high thermal and temperature resistance are the evidence for more structural power. Such masterpiece of engineering, in technology of alloying, could not be based on the knowledge of common craftsmen of that time, but it must have been based on superhuman wisdom. Consequently, although the Qur’an is a book of guidance, but it reports some original scientific issues, such as the Dhu al-Qarnayn story. These were not known in the age of revelation and after progressing in science, but the truth of considered issues has been proved. However, because of the clear instruction, and the precise prediction of properties, it is possible to use the verses as an excellent idea for scientific advancement, rather than reporting events.