Kaolinite [ Al2Si2O5(OH)4 ]

Image of Kaolinite

Material properties

Formula Al2Si2O5(OH)4
Abbreviation Kln
Variant poorly crystalline
Classifications Minerals containing OH, Kaolinite (subgroup)
Luminescence emitters M[n]OH, Si-O, Triplet-singlet, Unspecified, UO2
Spectra Reflectance (1)
IMA Status Approved (IMA 1980 s.p.)
Search other databases webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Related materials Dickite, Halloysite, Nacrite
Tags Hydroxide, Hydroxide , Mineral, Aluminosilicate

Composition

Element Atoms
O 9
Al 2
Si 2
H 4
Total: 17

References for Kaolinite

Reference
Lines Spectra Images
Bakhtin 1985 7 0 0
Laukamp et al. 2021 4 0 0
Gaft et al. 1996 5 0 0
Pejcic et al. 2021 (EP2021-1148) 0 1 0
Tarashchan 1978 1 0 0

Specimens of Kaolinite

Name Owner Materials Phase purity Image Spectra Techniques
KGa1b Kaolinite CSIRO Anatase, Kaolinite (97.4%) 97.4 1 Reflectance
KGa2 Kaolinite CSIRO Anatase, Kaolinite (96.9%) 96.9 0 —
APIH5 Kaolinite CSIRO Anatase, Kaolinite (96.4%) 96.4 0 —
API13 Kaolinite / Halloysite CSIRO Albite, Halloysite, hkl, Illite-Smectite 12.0A, Kaolinite (44.6%), Montmorillonite, Orthoclase, Quartz 44.6 0 —
PSP_E Eucryptite / Quartz / Kaolinite CSIRO Cookeite, Eucryptite, Kaolinite, poorly crystalline (14.0%), Pollucite, Quartz 14.0 1 Reflectance
M2126 Sillimanite / Kaolinite CSIRO Boehmite, Kaolinite (11.1%), Sillimanite 11.1 0 —
130 Chromite / Clinochlore / Lizardite CSIRO Chromite, Clinochlore, Kaolinite (6.9%), Lizardite-1T, Uvarovite 6.9 0 —
M1069 Alunite CSIRO Alunite, Andradite, Kaolinite (5.1%), Quartz 5.1 0 —
M0762 Goethite CSIRO Goethite, Kaolinite (4.9%), Muscovite-1M, Muscovite-2M1, Orthoclase, Quartz 4.9 0 —
MT8407 Meionite / Prehnite CSIRO Kaolinite (4.2%), Meionite, Montmorillonite, Muscovite-1M, Muscovite-2M1, Prehnite, Pumpellyite-(Mg), Cr, Scapolite 4.2 1 Reflectance
M2843 Quartz / Eucryptite CSIRO Clinochlore, Fe, Cookeite, Eucryptite, Kaolinite, poorly crystalline (4.0%), Prehnite, Quartz 4.0 1 Reflectance
M0731 Magnetite CSIRO Hematite, Kaolinite (3.1%), Magnetite 3.1 0 —
SBCa-1 Montmorillonite / Quartz CSIRO Anatase, Kaolinite (3.1%), Montmorillonite, Quartz 3.1 0 —
M1850 Quartz / Eucryptite / Cookeite CSIRO Clinochlore, Fe, Cookeite, Eucryptite, Kaolinite, poorly crystalline (3.0%), Quartz 3.0 1 Reflectance
APIH31 Illite-Smectite 12.0A / Quartz CSIRO Anatase, Hematite, Illite-Smectite 12.0A, Kaolinite (2.9%), Quartz 2.9 0 —
M2729 Bornite / Muscovite CSIRO Bornite, Calcite, Cassiterite, Kaolinite (2.2%), Muscovite-2M1, Quartz, Siderite 2.2 0 —
MES001 Biotite / Phlogopite CSIRO Biotite-1M, Kaolinite (2.1%), Phlogopite-1M, Quartz 2.1 0 —
M0765 Goethite CSIRO Goethite, Kaolinite (1.3%), Quartz 1.3 0 —
Erwan1 Biotite / Albite / Quartz CSIRO Albite, Ca, Biotite-1M, Kaolinite (1.0%), Quartz 1.0 0 —