Some deposits (4)

I believe the answer is:

ores

'some deposits' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for ores that I've seen before include "Metal-bearing minerals" , "Mineral deposits" , "Bauxite, haematite etc" , "Sources of metal" , "Mined minerals" .)

I've seen this clue in the L.A. Times Daily, the LA Times and the Wall Street Journal.

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