Akashat

AKASHAT is the phosphorite deposit in the western Iraq, in the Al Anbar province. The area is about 20 square kilometres, the explored reserves are 432 million tonnes. The deposit has been discovered in 1962, the preliminary exploration has been performed in 1963-65. The preparatory works have been started in 1971 for its open pit development by the Iraqi and Belgian mining companies.

The deposit is confined to the slightly inclined northern-western limb of the Gayersky uplift of the Arabian plate. The phosphorite bearing suite of the Umm-er-Radhuma (from Paleocene to Lower Eocene) contains 2 industrial strata of the phosphorites: the bottom one (2-4 metres, the reserves are 116 million tonnes) and the upper one (6-10 metres, the reserves are 316 million tonnes), which are separated by the pack of the limestones. The phosphorites are characterized by the following chemical composition (%): P2O5 of 22-25; CaO of 51.8-52.7; CO2 of 10.8-17.7; Al2O3 of 0.2-0.4; Fe2O3 of 0.2-0.7; SiO2 of 1.4-2.1. The phosphorites are calcareous and siliceous-calcareous, suitable for the benefication by flotation and calcined roasting, with the production of the marketable concentrates, which are containing 32-34% of P2O5.