To find Cor Lapis, you must explore the region of Liyue, as this is a Liyue Local Specialty.
Cor Lapis can only be found all over the Liyue region in abundance, under cliffs. It is a mineral, so you do have to mine it. The quickest way to do that is to use a character who wields a Claymore. You can use a non-Claymore character, but it will take longer to mine.
Local Specialties respawn every two days after looting them; however, this is based on the time you harvested them, not the server reset time.
The two images below show where you can find Cor Lapis in Liyue.
Click on the images to enlarge.
Thanks to Genshin Impact Interactive Map!
- Type: Local Material
Cor Lapis is used for the following Character Ascensions.
Here are the eight Liyue Local Specialties