Is iron ore rare or common answers

Is iron ore rare or common? There are many types of metal ore on Earth. One of the most common is iron ore, which is also known as hematite. To be economically viable for mining, iron ore

mining equipments in coal

List of Mining Equipment Career Trend. According to the Bureau of Labor Statistics, the mining industry consists of five major segments: coal mining, gas and oil extracting, metal ore mining, nonmetal mineral mining and supporting activities such as resource transportation. Get Price

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