Clay Minerals

Definition

A group of hydrous aluminium phyllosilicates minerals that may contain minor amounts of other elements such as potassium, magnesium iron etc., typically formed over long periods through weathering processes.

Related terms

Weathering: The breaking down or dissolving of rocks and minerals on Earth’s surface caused by natural elements such as water, wind or temperature change.

Silicate Minerals: The largest family of minerals, including quartz and feldspar, that contain silicon and oxygen atoms.

Hydrous Minerals: Minerals that contain water in their structure.