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2. Iron ore - Wikipedia

   en.wikipedia.org/wiki/Iron_ore

   Metallic iron is virtually unknown on the Earth's surface except as iron-nickel alloys from meteorites and very rare forms of deep mantle xenoliths.Although iron is the fourth-most abundant element in the Earth's crust, composing about 5%, the vast majority is bound in silicate or, more rarely, carbonate minerals, and smelting pure iron from these minerals would require a prohibitive amount of ...

3. Iron mining in the United States - Wikipedia

   en.wikipedia.org/wiki/Iron_mining_in_the_United...

   Iron ore was the third-highest-value metal mined in the United States, after gold and copper. [2] Iron ore was mined from nine active mines and three reclamation operations in Michigan, Minnesota, and Utah. Most of the iron ore was mined in northern Minnesota's Mesabi Range. Net exports (exports minus imports) were 3.9 million tons.

4. Iron - Wikipedia

   en.wikipedia.org/wiki/Iron

   Iron can also be oxidized by marine microbes under conditions that are high in iron and low in oxygen. [202] Iron can enter marine systems through adjoining rivers and directly from the atmosphere. Once iron enters the ocean, it can be distributed throughout the water column through ocean mixing and through recycling on the cellular level. [203]

5. 25 Foods That Offer Even More Iron Than Beef - AOL

   www.aol.com/25-foods-offer-even-more-050000877.html

   Yes, you can enjoy dessert and load up on iron—the USDA says that a typical 1-ounce serving size of dark chocolate packs roughly 3.4 mg of the mineral. A bar that is 70 to 85% cocoa, ...

6. 7 Warning Signs You're Not Getting Enough Iron - AOL

   www.aol.com/7-warning-signs-youre-not-123026959.html

   Then, check out the 18 Best Iron-Rich Foods You Can Eat. 1. You feel tired. Shutterstock. One telltale sign of iron deficiency is unusual tiredness or fatigue.

7. Native metal - Wikipedia

   en.wikipedia.org/wiki/Native_metal

   Metallic meteorites are composed primarily of the iron-nickel alloys: taenite (high nickel content) and kamacite (low nickel content). However, there are a few areas on earth where truly native iron can be found. [10] [11] Native nickel has been described in serpentinite due to hydrothermal alteration of ultramafic rocks in New Caledonia and ...