Kaoliniit

Structural context

Kaolinite
Crystal System triclinicCrystal Class pedialSpace Group P1

Chemical context

Stoichiometric formulas

Kaolinite
mindat.org
  • March 13, 2023Al2(Si2O5)(OH)4
IMA
  • March 13, 2023Al2Si2O5(OH)4
mineralogy.rocks
  • Aug. 30, 2022Al2Si2O5(OH)4

Physical properties

ColorColor entities, recognized using a custom trained NER model
      • pale-yellow
      • browns
      Color noteOriginal color note from the source
      White to cream and pale-yellow, also often stained various hues, tans and browns being common.
      StreakStreak entities, recognized using a custom trained NER model
        • paler
        Streak noteOriginal streak note from the source
        White, or paler than the sample.
        Lustre
        Waxy
        Pearly
        Dull
        Earthy
        Fracture
        Irregular/Uneven
        Conchoidal
        Sub-Conchoidal
        Micaceous
        Transparency
        Translucent
        Opaque
        Tenacity
        sectile
        Hardness
        2—2.5
        Calculated density
        2.63