Granite Sink

This piece of Granite was found only a few metres from the site. It was the hand sculpted by Rohan Bigham. The following information was provided by Geologist Cheikh L Wali: " The rock consists of a granitic-gneiss formed of white-grey felsic minerals such as quartz and feldspars, which alternate in a discontinuous foliated texture with dark minerals, mainly biotite and pyroxenes. It corresponds to a metamorphic rock derived from the transformation of an igneous granitic rock under high temperature and pressure, which results in this hard rock, generally resistant to dissolution in water. Such type of rock is commonly found in the cores of mountain ranges and in Precambrian (more than 540 million years) crystalline terranes."