Definitions for "Clay Minerals"
A group of hydrous silicates formed by weathering of minerals such as feldspar, pyroxene, or amphibole. Silicate tetrahedra are arranged in sheets.
Layered, platy minerals composed of hydrous aluminum silicates. Examples include kaolinite and chlorite
A group of very fine-grained minerals (alumino-silicates) which are the main constituents of clay. They occur as minute platelets which, when wet, slide across one another, giving the clay its plastic properties.