The upper part of the Adediya Formation (Cambro–Ordivician) exposed in southwestern Sinai.
It contains mineralizations which are exceptionally rich in radioactive and rare earth elements as well as heavy metals.
The recorded mineral assemblage consists of a large number of essential and accessory minerals some of which are radioactive and REE-bearing.
The obtained field and laboratory data were implemented to determine the sedimentary history of the host rocks.