Quartz extracted from Abuja's perfect (6)

I believe the answer is:

jasper

'quartz' is the definition.
(I have seen 'Opaque quartz ' mean 'jasper' so perhaps 'quartz' could also mean 'jasper')

'extracted from abuja's perfect' is the wordplay.
'extracted from' indicates a hidden word.
'JASPER' is hidden in the letters of 'abujas perfect'.

(Other definitions for jasper that I've seen before include "Reddish-brown stone used in jewellery" , "Opaque reddish-brown semi-precious stone" , "Precious stone - boy's name" , "A man" , "hard matter" .)

I've seen this clue in The Telegraph.

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