Coal Fly Ash - Material Description - User Guidelines for Waste and .The fly ash produced from the burning of pulverized coal in a coal-fired boiler is .. When this fly ash meets the chemical composition and physical requirements.composition of coal ash,Components of coal ashComponents of coal ash. •. Detrital or authigenic minerals. •. 95% of the mineral matter present in coal is composed of clay, pyrite and calcite. •. Clay minerals.
composition of coal ash