Bab 151: The Regards and the Lost Young Man

After a twenty-or-so-day-long survey, the research team announced their preliminary estimation: the reserve of the spiritual stones in Tianzhu Mountain was estimated at 25,400 ton.

Centering around the cave, the deposit stretched out for a dozen of kilometers with an uneven density. The ore was buried between 100 to 300 meters underground. In general, it was a shallow layer mine.

Exactly how significant was the figure 25,400 tons?

Take the province of Annan¹, where Qian Zhou was located, as an example. The mineral with the largest reserves was coal, which amounted to about 24.6 billion tons, the 7th highest of the country. Iron ore reserves of the province were around 3 billion tons, gold ore 150 tons, and silver ore 1967 tons, which were respectively the 5th, the 10th, and the 19th highest in the country.