Our anthracite is a high quality product, and is produced in the standard US industry sizes. Below is an example of our Stockton product specifications, as well as a sizing guide.

Stockton Mine Mammoth Vein
Typical Analysis: Proximate Analysis as Received

% Carbon   82.04
% Sulphur   0.61
% Ash    9.34
% Volatile Matter  3.71
% Moisture   5.92
Hardgrove Grindability 29.54 HGI
Heat Value (daf) 14,844 BTU/lb (8,246 kcal/kg)