Anthracite: The highest rank of coal. By definition, a coal with a fixed carbon content of over 91% on a dry ash-free basis. Anthracite coals have a bright luster, break with a conchoidal fracture, a se . . . View Full Definition
Bituminous Coal: A rank of coal that falls between anthracite and semi-bituminous. The most abundant rank of coal. Frequently referred to by the layman as 'soft coal'.
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Penetration: When the ball is dribbled or passed inside the defensive area toward the basket.