Crossword Genius

Gemstone (5)

Ross

'gemstone' is the definition.
(agate is a kind of gemstone)

This is all the clue.

(Other definitions for agate that I've seen before include "Impure form of quartz with banded chalcedony, used as a gemstone" , "Decorative stone" , "Variegated chalcedony" , "Variety of chalcedony" , "Banded ornamental stone" .)

I've seen this clue in The Times, The Mirror, the Evening Standard, The Independent, The Guardian and The Telegraph.
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