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mullite

American  
[muhl-ahyt] / ˈmʌl aɪt /

noun

  1. a rare clay mineral, aluminum silicate, Al 6 Si 2 O 1 3 , produced artificially during various melting and firing processes: used as a refractory.

mullite British  
/ ˈmʌlaɪt /

noun

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

"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

Etymology

Origin of mullite

1924; after Mull, source of the rocks in which it was first identified; -ite 1

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.