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What coal is made of?

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Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams. The harder forms, such as anthracite coal, can be regarded as metamorphic rock because of later exposure to elevated temperature and pressure. read more

Thousands of products are made with coal or coal by-products, including aspirins, soap, dyes, solvents, plastics, and fibers such as rayon or nylon. Coal is an important ingredient in production of products that require activated carbon, carbon fiber or silicon metal. read more

Coal is more combustible than wood, which is why it is widely used in the power generation sector. At present, coal provides the largest source of electrical energy in the world. There are actually different types of coal depending on volatile contents. read more

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