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Anthracite Coal Manufa

Anthracite Coal Manufa

Oct 07, 2019018332The most distinctive physical change at anthracite rank, is the development of conchoidal fracture and the loss of cleats in coal. Conchoidal fractures are curved, reflective, glass-like surfaces. Chemically, anthracites show a sharp decrease in hydrogen content and the hydrogen to carbon HC ratio relative to medium- and low-rank coals.

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