This paper describes an image analysis technique that allows petrographic analysis of coal to be performed on particulate coal. The technique is able to separate coal particles from the background resin and then gather information about the petrographic composition of the particle, as well as morphological information. This process requires two separate images of the surface captured at different camera exposure times. At the lower exposure, the liptinite has a grayscale value that is similar to that of the surrounding resin; however, at a higher exposure time, the resin remains black whereas the liptinite grayscale increases significantly enough to distinguish it from the resin. After the coal particles have been separated from the background resin, image processing is used to separate touching particles. The histogram and morphological data for each particle are stored individually in a data file. Detailed information about the petrographic composition of the sample can be collected, including maceral and microlithotype analysis.