The essence of the petrographic approach to the study of coal composition is the idea that coal is composed of a number of distinct organic components, called macerals, which each have a distinct set of physical and chemical properties. The entire body of coal petrographic literature supports this idea and is in direct contra
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It is the intent of this course to deal with the very broad aspects of coal petrology. In the process of doing this, the authors intend to point out many of the areas in which the science has been applied to geological and various production problems and also to suggest some areas where future work may be of value. The emphasis is to provide some basic reference materials, some procedural techniques and possibly some ideas for those of you who wish to pursue work in this area. This course is not intended to train you as a coal petrologist but rather to give you some ideas of what the capabilities and limitations of the field are, and to help you get started on your own if you wish to pursue any of these ideas to greater length.