The use of Washing Spirit Sand is extensive; it not only purifies the impurities within cinnabar but also serves as a neutralizing material in refining Earth Element Treasures, requiring large amounts.
Only Spirit Devouring Insects growing in environments with very pure Spiritual Qi can condense high-quality Washing Spirit Sand.
In the Central Continent, such regions are few, and most high-quality Washing Spirit Sand comes from the East Sea Cultivation Realm.
In recent years, frequent wars between the East Sea Cultivation Realm and Sea Beasts have greatly affected the supply of high-quality Washing Spirit Sand in the Cultivation Realm.
Old Chen finds it hard to believe that the other party has high-quality Jade Cocoons, as the purity of Spiritual Qi in the Western Continent is slightly inferior compared to other continents.
Whoever controls the supply of high-quality Washing Spirit Sand can make a fortune.
