Smectite (group) [ A0.3D2-3[T4O10]Z2 · nH2O ]

Material properties

Formula A0.3D2-3[T4O10]Z2 · nH2O
Abbreviation Sme
Crystal symmetry Monoclinic
Classification Clay
Members Stevensite, Illite-Smectite 11.5A, Montmorillonite (var. Fe), Zincsilite, Ferrosaponite, Saliotite, Volkonskoite, Nontronite, Beidellite, Saponite, Illite-Smectite 12.0A, Hectorite, Sauconite, Montmorillonite, Yakhontovite, Swinefordite
Reflectance lines H-O-H, M[n]OH
Search other databases webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Tags Aluminosilicate, Group, Hydrated

Composition

H, Mg, Ca, Fe, Si, O, Al, Na, Cr, Ni, Zn, Cu

Specimens of Smectite (group)

Name Owner Materials Image
API H31 Smectite CSIRO Anatase, Hematite, Illite-Smectite 12.0A, Kaolinite, Quartz, Smectite (group)