Illite-Smectite 12.0A : CSIRO Spectroscopy Database

Illite-Smectite 12.0A [ K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂ ‒ A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O ]

Formula	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂ ‒ A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O
Classifications	Mica, Smectite (group)
Search other databases	webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Tags	Aluminosilicate

Name	Owner	Materials	Phase purity	Image
APIH31 Illite-Smectite 12.0A / Quartz	CSIRO	Anatase, Hematite, Illite-Smectite 12.0A (79.9%), Kaolinite, Quartz	79.9	APIH31 Illite-Smectite 12.0A / Quartz Image of Illite-Smectite 12.0A, Hematite, Kaolinite and Quartz in specimen 'APIH31 Illite-Smectite 12.0A / Quartz' [CSIRO]. (C) 2025 CSIRO Mineral Resources. All rights reserved.
API13 Kaolinite / Halloysite	CSIRO	Albite, Halloysite, hkl, Illite-Smectite 12.0A (2.1%), Kaolinite, Montmorillonite, Orthoclase, Quartz	2.1	API13 Kaolinite / Halloysite Image of Kaolinite, Albite, Halloysite (var. hkl), Illite-Smectite 12.0A, Montmorillonite, Orthoclase and Quartz in specimen 'API13 Kaolinite / Halloysite' [CSIRO]. (C) 2025 CSIRO Mineral Resources. All rights reserved.