Montmorillonite

Properties

Formula (Na,Ca)0.3(Al,Mg)2Si4O10(OH)2ยทnH2O
Abbreviation Mnt
Classification Smectite (group)
Luminescence emitter OH
IMA Status Grandfathered (pre-IMA), 1847
Search other databases webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Crystal symmetry Monoclinic, Point group 2/m, Space group C2/m (#12)
Tags Hydrated , Hydroxide , Mineral, Aluminosilicate

Composition

Na, Ca, Mg, Si, Al, O, H