In the west side of the Great Sand Sea lies the enigmatic silica glass - ultra pure glass, 98% silica - discovered by P. Clayton in 1932 and believed by some scientists to be the result of a meteoritic impact. Another theory has it that these pieces are remains of a dried up lake. The silica field is located in the Great Sand Sea between two dune ridges 200 m high. © Lucio Andreetto - See the Egypt map with a complete picture set.

Did you find this picture misplaced in the map? Do you think that picture title or description might be wrong? Would you like to append your own commentary? Contact Us!