Coal mining is to obtain coal from the ground. Coal is valued for its energy content and it had been used to generate electricity since 1880s. The main types of coal are bituminous (soft coal), anthracite (hard coal), and subbituminous coal.
Bituminous coal is very common and has several uses, while subbituminous coals like peat have limited uses.
Coal mining at Kalimantan
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Coal mining at India
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