China is a country rich in resources; the same is true of iron ore resources. In China, many parts of the distribution of a large number of iron ore, but its geographical distribution, the difference between the nature but also a considerable following in accordance with our different geographical distribution of iron ore to explain in detail their different characteristics.
Jingtieshan-type iron ore deposits. Causes belong to the sedimentary-metamorphic deposits. Mainly distributed in Gansu Province. Oxide of iron ore characteristics: The main metallic minerals are specularite (the chemical composition of Fe2O3, but flaky crystals, was the bright steel-gray, named for the specularite), siderite, a small amount of hematite and limonite iron ore. Gangue minerals mainly Jasper, ankerite, and so on. The ore was banded structure.
Of Damiao type iron ore deposits. Its causes, the largest magma type, mainly located in Panzhihua in Sichuan, Xichang area and in Chengde, Hebei (Temple of iron ore that is of such deposits in it, hence the name). Ore characteristics: the vanadium-titanium magnetite ore. Useful minerals for the vanadium-containing magnetite, ilmenite, followed by pyrrhotite, chalcopyrite, chromite, pentlandite, the illusion of hematite and limonite.Gangue minerals are mainly labradorite, pyroxene, hornblende, and so on. Ore iron is generally 20% to 53%, containing S, P higher. Ore and more compact block.
The Daye type iron ore deposits. Its causes are contact metasomatic skarn-type iron ore deposits. Mainly distributed in Hubei Daye and Handan, Hebei and other places. Ore characteristics: In addition to containing magnetite, hematite, associated with copper-based non-ferrous minerals such as chalcopyrite, pyrite-hui and cobalt mine and so on. Gangue minerals are quartz, chlorite, sericite, calcite, dolomite. Higher ore iron to about 35% to 60%, sulfur content is also higher. Ore mostly massive and disseminated structures.
Xuanlong iron ore deposits. Its causes are sedimentary. Mainly distributed in Hebei Province Xuanhua Long smoke (hence the name) and Hubei, Hunan, Yunnan, Guizhou and Guangxi. Ore characteristics: the structure of the oolitic hematite as the main feature.Iron minerals hematite, followed by siderite, a small amount of limonite. Gangue of quartz, chlorite. Iron ore 25% to 50%. The ore is oolitic kidney-shaped or lenticular structure.
Bayan Obo type iron ore deposits. Causes belong to the gas into the high-temperature hydrothermal deposits. Mainly distributed in the Bayan Obo, Inner Mongolia region. Ore characteristics: the polymetallic complex ore. The main minerals: iron minerals are hematite, magnetite, and the illusion of hematite, etc.; niobium minerals are iron ore of niobium, pyrochlore, aeschynite, niobium calcium stone, etc.; rare earth minerals monazite and bastnaesite ore, phosphorus ore of lanthanum, praseodymium, fluorocarbon calcium ore, etc.; iron thorium ore, zircon, barite, apatite, heavy metals and sulfide. Gangue of quartz, chalcedony, calcite, dolomite, mica, sodium feldspar and other. Ore construct dense massive, disseminated and strip.
 

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