follow Dictionary.com

Why turkey has the same name as Turkey

illite

[il-ahyt] /ˈɪl aɪt/
noun
1.
any of a group of clay minerals, hydrous potassium aluminosilicates, characterized by a three-layer micalike structure and a gray, light green, or yellowish-brown color.
Origin
1937
1937; ill(inois) + -ite1
Related forms
illitic
[ih-lit-ik] /ɪˈlɪt ɪk/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
Examples from the web for illite
  • Dyna- illite only brought the remains of old shipwrecks to the surface.
  • Infiltration capacity seems to be influenced by the proportion of illite within the silt sized fraction.
British Dictionary definitions for illite

illite

/ˈɪlaɪt/
noun
1.
a clay mineral of the mica group, found in shales and mudstones. Crystal structure: monoclinic. Formula: K1–1.5Al4(Si6.5–7Al1–1.5O20)(OH)4
Word Origin
C20: named after Illinois, where it was first found
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
Cite This Source
Encyclopedia Article for illite

any of a group of mica-type clay minerals widely distributed in marine shales and related sediments. Illite contains more water and less potassium than true micas, but it has a micalike sheet structure and is poorly crystallized. It may form a chemical series with both muscovite and montmorillonite; it is a weathering product of muscovite and alters to montmorillonite under humid conditions. For chemical formula and detailed structure and physical properties, see clay mineral (table); mica (table)

Learn more about illite with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source

Word of the Day

Word Value for illite

6
8
Scrabble Words With Friends