It is an old clay pot texture. To be precise, it is more of a terracotta type.

This texture can be used for models of vintage pots, antique vases etc.

If you love the Moroccan tiles of the 4th picture, you can get it from the Moroccan Style Floor Tiles.

These orange clay roof tiles is slightly damaged and covered by some dust.

It is a typical roof tile texture of European houses.

These colourful clay roof tiles have a dull tone and vertical line pattern on the surface.

It is a phenomenal texture for rooftops of European houses.

They are black clay roof tiles having vertical lines as pattern on the surface.

If you are building a house, this texture may suit your need.

It is a clay rooftop of a house. It has a grey colour. Dents, bumps and dirt can be found on the surface.

This texture is an old vintage clay tile which is good for indoor and outdoor flooring. Dirt can clearly be seen.