A mineral from Korea (3)

I believe the answer is:

ore

'a mineral' is the definition.
(I know that ore is a type of mineral)

'from korea' is the wordplay.
'from' says the answer is hidden in the clue.
'ORE' is hidden within 'korea'.

(Other definitions for ore that I've seen before include "foreign money" , "Mineral or metal source" , "Mineral - Scandinavian money" , "Mineral deposit" , "Solid rock containing metal" .)

I've seen this clue in The Irish Independent.

Want a hint initially instead of a full solution? Install my app