Grain of Aerosiderite
Description:
Weapon Ascension Material.
A black meteor once fell beyond Liyue’s Sea of Clouds, said to have fallen to vanquish a monster.
However, it was stained by powerful tainted blood, so this item no longer possesses the pure power of Rex Lapis.
Rating:
2/5

Source:
Obtained after completing Hidden Palace of Lianshan Formula every Wednesday, Saturday, and Sunday.