Composition and Properties of Coal from the Raichikhinskoe Brown Coal Deposit (Amur Oblast, Far East).

A comprehensive study of the chemical and group composition of organic and mineral fractions of brown coal from the Raichikhinskoe deposit was carried out. Chemical and technological parameters were determined and the textural characteristics of coal were studied. It was found that the mineral component of coal is clayey in nature and has a stable composition. The variability in the composition of the organic matter of coal indicates the facies instability of sedimentation conditions in the studied areas of coal accumulation. [ABSTRACT FROM AUTHOR]