Common clay is a natural, fine-grained material composed of hydrous aluminum silicates. Shale is a laminated sedimentary rock formed by the consolidation of clay, mud and/or silt.
|Title||Common clay and shale|
|Publication Subtype||Journal Article|
|Series Title||Mining Engineering|
|Record Source||USGS Publications Warehouse|
|USGS Organization||National Minerals Information Center|