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| Q. |
Among the following iron ores, the highest percentage of iron content is found in— |
| A. | Haemetite |
| B. | Magnetite |
| C. | Limnonite |
| D. | None of these |
| Answer» A. Haemetite | |
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Explanation: Hematite, also spelled haematite, heavy and relatively hard oxide mineral, ferric oxide (Fe2SO3), that constitutes the mostimportant 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. Many of the various forms of hematite have separate names. The steel-gray crystals and coarse-grained varieties have a brilliant metallic lustre and are known as specular iron ore; thin scaly types are called micaceous hematite. |
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