Cubes are pavement elements that are almost of a cubic shape obtained by mechanical splitting. The product therefore has natural surfaces or with slits (depending on the material) and split sides.... 
The paving block, which is a parallelepiped shape, has a natural upper face with parallel sides and cut off kerbs, generally orthogonal to the plane or slightly undercut.
Historically used for...
Natural or flamed surface tiles which come from squaring slabs extracted from quarries, which are processed or mechanically compressed (by shearing), thus creating splits that are orthogonal to the...
Natural surface tiles, which come from squaring slabs extracted from a quarry, are processed by sawing with diamond tipped discs, creating perfectly square and smooth sides. Generally, the tiles...
Tiles with the machined surfaces resulting from the cutting of blocks extracted from a number of quarries which have regular sizes and thicknesses. The tiles are sawn and the surface is worked on...
What is normally meant by a Palladian is an irregular slab directly selected from material at a quarry. These polygonal slabs have a natural surface, variable thickness and rough sides.
They are...
A product which exists in nature without the need for further processing. The river pebble has an almost round shape which makes it immediately usable by appropriately selecting sizes. Simple, but...