|Type||Weapon Ascension Material|
|In-game Slang||Weapon Ascension Material|
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.
Piece of Aerosiderite =
Grain of Aerosideritex 3