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)