Illite

Properties

Formula K0.65Al2.0[Al0.65Si3.35O10](OH)2
Abbreviation Ilt
Classification Muscovite
IMA Status Informal
Search other databases webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Crystal symmetry Monoclinic
Tags Aluminosilicate , Hydroxide, Variety

Composition

Element Atoms
O 12
H 2
K 0.65
Al 2.65
Si 3.35
Total: 20.65