Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by composition]
6. inorganic material
7. clay
8. [clay by composition or origin]

Anotations

Scope note:

Clay used as a medium, typically dried but not intended to be fired. Examples include ancient clay tablets that were inscribed, dried, and then soaked in water for the purpose of reforming and reuse, and some clay surfaces used for wall paintings. For pottery in a state that is not yet fired, but firing is intended, use "greenware." For bricks used as a building material but not fired, use "soft brick" or "sun-dried brick."