INDIAN GEOGRAPHY

Detailed explanation-1: -Haematite contains 60% to 70% pure iron ore. Limonite contains 40% to 60% pure iron. Siderite contains many impurities and has just 40% to 50% pure iron.

Detailed explanation-2: -hematite, also spelled haematite, heavy and relatively hard oxide mineral, ferric oxide (Fe2O3), that constitutes the most important iron ore because of its high iron content (70 percent) and its abundance. Its name is derived from the Greek word for “blood, ‘’ in allusion to its red colour.

Detailed explanation-3: -Haematite contains 60% to 70% pure iron ore.

Detailed explanation-4: -Hematite and magnetite are by far the most common types of ore. Pure magnetite contains 72.4 percent iron, hematite 69.9 percent, limonite 59.8 percent, and siderite 48.2 percent, but, since these minerals never occur alone, the metal content of real ores is lower.

Detailed explanation-5: -It has been found that the main iron-bearing mineral is hematite, which contains 69.02 to 70.35% of iron distributed in the ore.