mullite

[muhl-ahyt]

noun

a rare clay mineral, aluminum silicate, Al6Si2O13, produced artificially during various melting and firing processes: used as a refractory.

Origin of mullite

1924; after Mull, source of the rocks in which it was first identified; see -ite¹

Also called porcelainite.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for mullite

mullite

noun

a colourless mineral consisting of aluminium silicate in orthorhombic crystalline form: used as a refractory. Formula: Al 6 Si 2 O 13

Word Origin for mullite

from island of Mull

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012