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9 تموز يوليو قُبلت أوراقه، استلم دوامه أسبوعًا صباحيًّا، وآخر مسائيًّا؛ حتى يلم بكافة خلاطات هل فيها عينات مركزات فيتامينات ومركزات عناصر معدنية نادرة؟Earth s most important iron ore deposits are found in sedimentary rocks They formed from chemical reactions that combined iron and oxygen in marine and Iron ore can be found all over the world in the form of rocks and other minerals To be economically viable for mining iron ore must contain at least 20 iron

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Iron ores are rocks and minerals from which metallic iron can be economically extracted The ores are usually rich in iron oxides and vary in color from dark grey bright yellow or deep purple to rusty red The iron itself is usually found in the form of magnetite Fe There are four main types of iron ore deposits worked currently depending Feb 19 Carajas is an open pit mining operation targeting the Serra Norte Serra Sul and the Serra Leste iron ore deposits in the Carajás District

Most deposits of iron ore in the world are found in rocks known as banded iron formations BIFs These are sedimentary rocks that have alternating layers of It is found in Andhra Pradesh Jharkhand Goa Kerala Tamil Nadu and Karnataka Iron ores are widely distributed in the state but high grade ore deposits are