Crossword Genius

Mineral source (3)

Ross

I believe the answer is:

ore

'mineral source' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for ore that I've seen before include "Metal-bearing rock or mineral" , "coinage" , "Mined material" , "Danish currency" , "Mineral - Scandinavian monetary unit" .)

I've seen this clue in The Star Tribune and The Mirror.
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