Magical Crystal Chunks are brilliant-blue crystals that can be used for forging Mystic Enhancement Ores. Here's where you can find all the Magical Crystal Chunks in Teyvat.
Monstadt
Speak with Wagner, the Blacksmith by the entrance, and select Any tips on finding ore in Monstadt? He'll then mark up some areas on the map containing Rich Ore Reserves, where you can farm Magical Crystal Chunks. Alternatively, you can find all the Magical Crystal Chunks in Monstadt below.
Liyue
Speak with Master Zhang, a Blacksmith located in Liyue Harbor's eastern wharf, and select the option About Liyue's mining products... He'll then mark up some areas on the map containing Rich Ore Reserves, where you can farm Magical Crystal Chunks. Alternatively, you can find all the Magical Crystal Chunks in Liyue below.
Bishui Plain, Minlin, Qiongji Estuary
Lisha, Sea of Clouds
Inazuma
Speak with Hajime, a Blacksmith Disciple in Inazuma City's Hanamizaka, and select the option Do you have any information about Inazuman ores? He'll then mark up some areas on the map containing Rich Ore Reserves, where you can farm Magical Crystal Chunks. Alternatively, you can find all the Magical Crystal Chunks in Inazuma below.
Narukami Island and Seirai Island
Kannazuka, Yashiori Island, and Watatsumi Island
How to Use Magical Crystal Chunks
Players can approach any Blacksmith or a Forging Table in the Serenitea Pot to craft x6 Mystic Enhancement Ore with x3 Magical Crystal Chunk, x100 Mora, and x10 Original Resin. While this recipe is more expensive than others due to the Resin cost, it merits you x50 Adventure EXP per instance, which can be useful for quickly using up your Resin on days when you're too busy to play the game.
Check out Where to farm Electro Crystal in Genshin Impact on Pro Game Guides to search for another ore with rare use cases.
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