The luster and luster of pure copper and the interesting color of mineral stones are among the other reasons for its use in the past ages. According to some sources, the age of using copper according to archaeological evidence reaches 9500 BC and before 5th millennium BC (discovery of copper smelting) is used in its pure form and cold hammering method is used to shape it. Today, based on the undeniable evidence found from all corners of Iran, the north and center of Iran can be considered as one of the oldest metalworking centers in the world, and Iranian metalworkers are among the pioneers of discovering copper smelting in the ancient world.The abundance of copper mines in Iran confirms this point. According to the discovery of the copper smelting furnace in Segzabad, Qazvin, located in ((Cemetery Hill)), by ((Dr. Majdzadeh)), and this area is geographically close to Zanjan. , which is probably the first copper smelting furnace, and the presence of large copper mines in the area, such as the (Rashid Abad) copper mine, can be used to understand the age of the use of this metal in Zanjan. 

Islamic era

With the prohibition of using gold and silver to make dishes, the trend of using metals such as copper increased. Because it is a malleable, malleable metal, with the ability to be twisted and wired and perform various decorations, such as meshwork, penciling, engraving, metal stamping, inlaying and carving, etc. Along with other uses of copper, this metal has also been used for minting coins throughout history.
The pinnacle of the art of metalworking in the Islamic period is related to the Seljuqs, in this period Zanjan, along with centers such as Khorasan, Mosul, and Hamedan.