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Using a Spectrometer for Coal Exploration

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Using a Spectrometer for Coal Exploration

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Coal is a naturally combustible solid that is still an important fossil fuel especially for generating electricity. Coal is classified by hardness and carbon content as anthracite, bituminous coal, sub-bituminous coal, and lignite. Spectroscopy can be used in coal exploration to identify coal as well as related minerals including: quartz, kaolinite, illite, montmorillonite, chlorite, pyrite, calcite, and siderite. Coal exhibits important spectral absorption features at 1700, 2100 and 23-2500 nanometers.

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