A white or gray clay mineral that is the chief constituent of kaolin.
- ‘Vein minerals are barite, calcite, chalcopyrite, kaolinite, pyrite, sphalerite, and wurtzite.’
- ‘In this case the surrounding sediment matrix is dominated by detrital quartz and illite along with various other clay minerals (e.g. kaolinite and chlorite).’
- ‘These include clay minerals such as kaolinite and talc, micas, montmorillonites, and the remainder of the asbestos minerals including chrysotile (white asbestos).’
- ‘Sandstones with this component contain authigenic hematite intergrown with kaolinite and illite and replacing muscovite.’
- ‘In the presence of kaolinite and illite, aggregate sizes were smaller and sinking rates lower than in the presence of smectite and quartz.’