Perbezaan antara semakan "Bijih besi"

55 bait ditambah ,  8 tahun lalu
tiada ringkasan suntingan
bijih besi ialah sejenis mineral yang dijumpai di kerak bumi.
[[Image:HematitaEZ.jpg|thumb|250px|Hematite: bijih besi utama di lombong Brazil]]
[[Image:HematitaEZ.jpg|thumb|250px|Hematite: the main iron ore in Brazilian mines]] [[Image:LightningVolt Iron Ore Pellets.jpg|thumb|250px|This stockpile of iron ore pellets will be used in [[steel]] production.]] '''Iron ores''' are [[Rock (geology)|rocks]] and [[mineral]]s from which [[metal]]lic [[iron]] can be economically extracted. The [[ore|ores]] are usually rich in [[iron oxide]]s and vary in color from dark grey, bright yellow, deep purple, to rusty red. The iron itself is usually found in the form of [[magnetite]] ({{Chem|Fe|3|O|4}}), [[hematite]] ({{Chem|Fe|2|O|3}}), [[goethite]] ({{Chem|Fe|O|(OH)}}), [[limonite]] ({{Chem|Fe|O|(OH)|.n(H<sub>2</sub>O)}}) or [[siderite]] ({{Chem|Fe|C|O<sub>3</sub>}}). Hematite juga dikenali sebagai "bijih semulajadi", a name which refers to the early years of mining, when certain hematite ores containing up to 66% iron could be fed directly into iron-making blast furnaces. Iron ore is the raw material used to make [[pig iron]], which is one of the main raw materials to make [[steel]]. 98% of the mined iron ore is used to make steel.<ref>{{cite web |url=http://www.mii.org/Minerals/photoiron.html |title= IRON ORE -Hematite, Magnetite & Taconite |work=Mineral Information Institute |accessdate=7 April 2006}}</ref> Indeed, it has been argued that iron ore is "more integral to the global economy than any other commodity, except perhaps oil".<ref name="Iron ore pricing"/>
[[Image:LightningVolt Iron Ore Pellets.jpg|thumb|250px|Stok palet bijih besi akan digunakan dalam penghisalan keluli.]]
 
[[Image:HematitaEZ.jpg|thumb|250px|Hematite: the main iron ore in Brazilian mines]] [[Image:LightningVolt Iron Ore Pellets.jpg|thumb|250px|This stockpile of iron ore pellets will be used in [[steel]] production.]] '''IronBijih oresbesi''' areadalah [[Rockbatu (geology)|rocks]]dan andgalian [[mineral]]sdari frommana whichlogam [[metal]]licbesi [[iron]]boleh candihasilkan besecara economically extractedekonomik. TheBijih [[ore|ores]]biasanya areamat usuallykaya richdengan in [[iron oxide]]sbesi andoksida varydan inpelbagai colorwarna fromdari darkkelabu greygelap, brightkuning yellowmenyala, deepungu purplegelap, tosehingga rustymerah redkarat. TheBesi iron itself is usuallyitu foundsendiri inbiasanya theterdapat formdalam ofbentuk [[magnetite]] ({{Chem|Fe|3|O|4}}), [[hematite]] ({{Chem|Fe|2|O|3}}), [[goethite]] ({{Chem|Fe|O|(OH)}}), [[limonite]] ({{Chem|Fe|O|(OH)|.n(H<sub>2</sub>O)}}) oratau [[siderite]] ({{Chem|Fe|C|O<sub>3</sub>}}). Hematite juga dikenali sebagai "bijih semulajadi", anama nameyang whichmerujuk referskepada toawal theperlombongan, earlydi yearsmana ofsesetengah mining, when certainbijih hematite oresyang containingmengandungi up tosehingga 66% ironbesi couldboleh bedisuap fedsecara directlylangsung intoke iron-makingdalam relau tiup blastmenghasil furnacesbesi. IronBijih orebesi ismerupakan thebahan rawmentah materialyang useddigunakan tobagi makemenghasilkan besi [[pig iron]], whichyang ismerupakan onesalah ofsatu thedari mainbahan rawmentah materialsbagi tomenghasilkan make [[steel]]keluli. 98% ofdaripada thebijih mined ironbesi oreyang isdilombong useddigunakan tobagi makemenghasilkan steelkeluli.<ref>{{cite web |url=http://www.mii.org/Minerals/photoiron.html |title= IRON ORE -Hematite, Magnetite & Taconite |work=Mineral Information Institute |accessdate=7 April 2006}}</ref> Indeed, it has been argued that iron ore is "more integral to the global economy than any other commodity, except perhaps oil".<ref name="Iron ore pricing"/>
 
 
== Nota ==
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