Blue aluminium silicate mineral used in bathroom porcelain (7)
I believe the answer is:
kyanite
(Another definition for kyanite that I've seen is " Mined substance; any kite (anag.)".)
I've seen this clue in The Mirror.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free.
Check out my app
or
learn more
about the Crossword Genius project.