Appendix A


The American Society for Testing and Materials (ASTM) classification scheme for coal rank, referred to in places throughout this report, is shown below.

For a description of this image, please contact bioregionalassessments@bom.gov.au

Figure 12 Classification of coal by rank. Coal maturity increases from lignite to anthracite

Source: modified after Wood et al. (1983)

Last updated:
3 August 2016