C8920 How?

Furthermore, the quality of the blackstone veins at the periphery of the Exalted World was very high. Every day, a large amount of High Grade blackstone would be mined out.

The amount mined out was not small. In addition to the high quality of the blackstone, the amount mined out every day was enough for all the Martial Cultivators in the entire Alliance to use for a long time.

However