Clay FAQs:

Q: Is clay a finely-grained natural rock or soil material that combines one or more clay minerals with traces of metal oxides and organic matter?

A: Yes.

Q: Is clay also often used in the manufacture of pipes for smoking tobacco?

A: Yes.

Q: Is clay used to create adobe?

A: Yes, and cob, cordwood, and rammed earth structures and building elements such as wattle and daub, clay plaster, clay render case, clay floors and clay paints and ceramic building material.

Q: Is clay a unique type of marine clay indigenous to the glaciated terrains of Norway?

A: Yes, and Canada, Northern Ireland, and Sweden.

Q: Is clay one of the oldest building materials on Earth?

A: Yes, and among other ancient, naturally-occurring geologic materials such as stone and organic materials like wood.

Q: Are clays distinguished from other fine-grained soils by differences in size and mineralogy?

A: Yes.

Q: Is clay also used in many industrial processes?

A: Yes, such as paper making, cement production, and chemical filtering.

Q: Are clays plastic due to their water content and become hard?

A: Yes, and brittle and non–plastic upon drying or firing.

Q: Was clay used as a mortar in brick chimneys and stone walls where protected from water?

A: Yes.

Q: Was clay widely used as a mold binder in the manufacture of sand castings?

A: Yes.

Q: Is clay used for making pottery?

A: Yes, and both utilitarian and decorative, and construction products, such as bricks, wall and floor tiles.

Q: Are clays clays that have been transported from their original location by water erosion and deposited in a new sedimentary deposit?

A: Yes.