What type of rock is Sigiriya rock made of?

Exposed by the natural course of geological processes millions of years in the making, a giant granite mass formed in the depths of the earth's crust into what is known today as the Sigiriya Rock.

Geological Properties of Sigiriya:

Constitution:

An igneous mass of granite rock dating to a time of dormancy in the region and thereafter crystalized into hard solid rocks.

Extreme Durability:

By resisting the weather so well, it has survived long against the test of time, with numerous other landscapes being worn away.

Structural Advantage:

Rising about 200 meters above the plain, this historically sound rock provided a natural, grandiose foundation for the ancient mountain shelter and its complex earthworks.