Magnetic Susceptibilities of Coals

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Science  05 Jan 1968:
Vol. 159, Issue 3810, pp. 83
DOI: 10.1126/science.159.3810.83


Magnetic susceptibilities are reported for seven American coals of different rank. The susceptibilities were measured in magnetic fields parallel and perpendicular to the bedding planes. The coals have diamagnetic susceptibilities approximating -0.5 x 10-6 centimeter-gram-second unit. Only anthracite shows significant magnetic anisotropy.