The mineral vein in Yun City was located on Cloud Stone Mountain. It was originally a land of Cloud Stone, but an iron deposit was later discovered within it. The Government Office and the Cyan Yuan Sect then joined forces to mine it, distributing the extracted iron ore proportionally each year.
Although the quality of this iron ore was average, it was still suitable for forging common weapons and farming tools. Furthermore, even within ordinary iron deposits, there would more or less be some better-quality, or even treasure-grade, ores. These were the materials used to forge Thousand Refinements and Sharp Weapon Level weapons.
The higher the level of the weapon, the more materials were required, and the higher the quality demanded of those materials.
And those special artifacts even required materials imbued with unique abilities.
