COAL CHARACTERISTICS - Purdue University
COAL RANK Anthracite coal is a dense, hard rock with a jet-black color & metallic luster. It contains between 86% and 98% carbon by weight, ... INDIANA & POWDER RIVER BASIN COAL Indiana coal PRB coal Moisture 10 -12% ~ 28% Volatile matter ~ 40% higher Heating value 11,386 Btu/lb Btu/lb 8,088 Ash content 9.4% 7.6%
