This guide shows how to open the Purple Door in The Chasm in the game of Genshin Impact 2.6, which was released on 30th March 2022. You need the Blooming Light effect to open the Purple Door.
Upgrade Lumenstone Adjuvant
You need a refine Lumenstone Adjuvant to open the Purple Door. Head south of The Glowing Narrow as shown below location on the map and talk to NPC (Jinwu). Jinwu is the safety technician of the Chasm.
Here, refine your Lumenstone Adjuvant to level 6 which will help to destroy level 2 Oozing Concretions. Lumenspar and Lumenstone Ore are required to upgrade Lumenstone Adjuvant
How To Open The purple Door In The Chasm
After upgrading the Lumenstone Adjuvant to level 6, teleport to the below-shown location on the map. Purple Door is located at the northernmost point of The Chasm: Main Mining Area. From the teleport waypoint, head north and defeat all the enemies protecting the purple door
Finally, go in front of the purple door and use Level 6 Lumenstone Adjuvant to open the door.