Much-sought-after commodity in "Dune" (5)

I believe the answer is:

spice

(Other definitions for spice that I've seen before include "eg Mace, ginger, Posh" , "Something providing excitement" , "Pungent flavouring" , "Flavouring substance" , "Eg, turmeric" .)

I've seen this clue in The New York Times.

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