Ancient Strengthening Technique

However, what could this be? Could this be Gold Essence Extract? After all, only gold would have this sort of color.

Gold Essence Extract was the purest form of gold. Looking at the peach-size Gold Essence Extract, Qing Shui knew that in order to refine such an amount of Gold Extract, one would need at least a 100 tonnes of gold to be able to do so.

Qing Shui was thunderstruck!

Looking the priceless Gold Essence Extract, Qing Shui went slack-jawed. If a iron essence needed a 100 tonnes of iron before it could be refined, the price of the iron essence would undoubtedly be many times more than the price of the 100 tonnes of iron. This was the same for Gold Essence Extract, with just a rough estimation, he gauged that the peach-sized extract in his hands was worth at least 2 million taels of gold.