Originally posted by Mr. X:

https://valheim.fandom.com/wiki/Torn_spirit

If you want to know how the item is (usually) named in the console look at the wiki and the internal ID of the item.
In your case its called "yagluththing" but actually its renamed to "yagluthdrop" (seems like the wiki is not up to date)

command:
spawn yagluthdrop 1