devil's marble

Devils Marbles

The Devils Marbles, a group bizarre rock formation located on both sides of Stuart Highway, south of Tennant Creek in the Northern Territory. The Devils Marbles are a collection of enormous rounded granite boulders, which are balanced on top of one another. These spectacular boulders are up to 7 metres in diameter. Aboriginal legend refers to these precariously balanced boulders as the eggs of the rainbow Serpent, which was laid there during the dreamtime.




































The Devils Marbles have been formed by spheroidal weathering. The combination of mechanical weathering (which cracked the rocks) and the chemical weathering (which flaked the surface) formed the remarkable formation.

One of the sign explains the process: ¡®These boulders were originally part of a solid mass of coarse grained granite which formed deep within the earth¡¯s surface about 1640 million years ago. Erosion has since stripped ...