How Cobblestone Is Made?

Cobblestones are a strong, natural material, originally collected from riverbeds where the flow of the water made them round. When set in sand or bound with mortar, cobblestones once proved perfect for paving roads. With the strength of cobblestone, no ruts developed in the streets.

What is cobblestone made out of?

True cobblestones are always natural stone—usually granite, but sometimes basalt, limestone, or another stone. The original cobblestone pavers were naturally occurring rounded stones collected from stream beds.

How do cobblestones form?

They are usually between two and ten inches in diameter or length and are often taken from rivers, where the constant running water gradually wears away at the stone and forms those signature rounded edges. The word cobblestone is derived from the English word “cob”, which means something round or lumpy.