Mineral coal is used in producing steam power to drive railway trains, Steam-ships and Steamers.
Steam-power is produced from water boiled by mineral coal. Electricity is easily manufactured from coal by planting thermal stations near coal mines.
Synthetic petrol is manufactured from mineral; coal through a kind of chemical process.
Coal-tar which is obtained from coal acts on wooden articles to save them from the ravage of white ants. Many dye, scent, some medicines, fertilizer called Ammonia Sulphate, Vaseline as well as camphor, artificial musk, phenyl, carbolic acid, saccharine and plastic are also made from coal. So we can say that coal is full of value. Therefore coal is axiomatically called, Black Diamond.
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