Grain of Aerosiderite is in Weapon Ascension material of Genshin Impact.
Description: "A black meteor once fell beyond Liyeu'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 Red Lapis."
| Item Type | Weapon Ascension Material |
| Rarity | 2 Stars |
How to Get Grain of Aerosidrite
There is 1 source to obtain Grain of Aerosidrite.
- Source 1: Hidden Palace of Lianshan Formula.
Craft Usage
| Name | Image | Craft Type |
| Piece of Aerosiderite |  | Alchemy |
Weapon Ascension Usage
Grain of Aerosidrite is use for ascension weapons below:
| Weapon Name |
| Cresent Pike |
| Iron Sting |
| Skyrider Sword |
Related Weapon Ascension
| Grain of Aerosidrite | Piece of Aerosidrite |
 Bit of Aerosidrite |  Chunk of Aerosidrite |