Metals & Minerals
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Gold
Raw gold is a naturally formed high gold content precious metal alloy. Pure gold is 24K and has a bright yellow color. Pure gold is the most expensive: The lower the karat number, the less gold there is in the alloy, and thus the lower the price.
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Iron Ore & More
The primary use of iron ore is in the production of iron. Most of the iron produced is then used to make steel. Steel is used to make automobiles, locomotives, ships, beams used in buildings, furniture, paper clips, tools, reinforcing rods for concrete, bicycles, and thousands of other items.
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