The highest rank of coal. It is a hard, brittle, and black lustrous coal, often referred to as hard coal or black coal, containing a high percentage of fixed carbon and a low percentage of volatile matter and impurities. As one of the most brittle kinds of coal, anthracite is the perfect resource to use for the generation of heat for an extended amount of time. As the coal is burnt, it produces a hot blue flame that can generate enough heat to power the heating systems of entire buildings, homes and offices. The Specification are : Total Moisture - 3-4% Ash Content - 3.2% Volatile Matter - 7.4% Fixed Carbon - 85-87% Total Sulphur - 0.7-0.9% Gross Calorific Value - 8000 - 8200 HGI - 45-68 Size - 25 - 80mm