|Science / Geology / Anthracite is brought to you by:||Skip|
Science / Geology / 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 semi-metallic luster and are difficult to ignite. Frequently referred to by the layman as 'hard coal'.
Search Google for Anthracite: