Nawamis are tombs located in the Sinai desert. They are circular stone structures. The dating of bones found in the tombs is from 4000 – 3150 BCE.

Nawamis are constructed of sandstone

Sandstone

Sandstone is a sedimentary rock composed mainly of sand-sized minerals or rock grains.Most sandstone is composed of quartz and/or feldspar because these are the most common minerals in the Earth's crust. Like sand, sandstone may be any colour, but the most common colours are tan, brown, yellow,...

, about 2 to 2.5 m (6.6 to 8.2 ft) high and 3 to 6 m (10 to 20 ft) in diameter, and have openings facing West.

Some authorities believe that the stone structures are younger than the remains found therein