What types of rocks is Stonehenge made up of?

Stonehenge is formed of two main types of stone - sarsens and bluestones. The sarsens are the big stones which form the massive ring of trilithon arches. read more

Although at least 20 types of rocks have been identified at the site, Stonehenge is made from two primary types of stone: sarsen sandstone and bluestone, with the stones forming the external wall of the circle in Stonehenge being made from the former. read more

According to the established wisdom for some 90 years, many of the smaller rocks making up Stonehenge come from the Preseli Hills in Pembrokeshire, Wales. In 1923, geologist Herbert Henry Thomas first identified an outcrop known as Carn Meini as the source of the spotted dolerite bluestones used to build Stonehenge. read more