Kaolinites

Part of speech: noun

Definitions

1. A group of clay minerals primarily composed of kaolinite, which are characterized by their fine particle size and layered structure
2. Minerals belonging to the kaolinite family, known for their use in ceramics and paper manufacturing due to their plasticity and whiteness
3. Clay minerals that form from the weathering of feldspar and are significant in various industrial applications, particularly as fillers and absorbents

Etymology: "Kaolinites" is the plural of "kaolinite", the name for a family of clay minerals whose most important member is kaolinite itself. The root word, "kaolin", is the fine white clay prized for porcelain and paper coating, and its name comes from "Kao-ling", a hill near Jingdezhen in China, where porcelain-making clay was long mined. The suffix "-ite" is the standard mineralogical ending for rock and mineral names, so "kaolinite" literally means "a mineral of the kaolin type." The plural form is used because the category covers several closely related minerals sharing the same layered structure, such as dickite and nacrite, rather than just one. Their layers of silicate sheets stack in ways that give each mineral a slightly different form, but all share a very small particle size.

Synonyms: kaolin clays, china clays