Soft white-grey material found in Oriental carpets (4)

I believe the answer is:

talc

I'm a little stuck... Click here to teach me more about this clue!

'soft white-grey material' is the definition.
I can't tell whether this definition defines the answer.

'in oriental carpets' is the wordplay.
'in' indicates the answer is hidden within the clue.
'TALC' can be found hidden inside 'oriental carpets'.

'found' acts as a link.

Can you help me to learn more?

(Other definitions for talc that I've seen before include "Magnesium silicate powder" , "Mineral used as a toiletry" , "Bathroom powder (abbr)" , "Fine powder" , "It is used to absorb moisture" .)

I've seen this clue in the Irish Times (Crosaire) and the Irish Times.

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