Europe’s largest deposit of rare earth metals is located in the Kiruna area (lkab.com)

Related and interesting consequence of mining in the area, they're moving the entire city of Kiruna (~22k inhabitants) because of the expanding mining operations: https://www.forbes.com/sites/davidnikel/2021/03/23/kiruna-a-... - http://edition.cnn.com/style/article/sweden-kiruna-relocatio...

dupe: https://news.ycombinator.com/item?id=34352040

Next week, the kremlin will discover russian-speaking citizens in Kiruna, and demand the city is returned to its rightful owner — the CCCP — for everyone's safety and prosperity.