high-rank coal

Coal consisting of less than 4% moisture when air-dried, or more than 84% carbon.

Related terms:

• high-volatile bituminous coal
• rank
• low-rank metamorphism
• ortholignitous coal
• orthobituminous coal
• low-volatile coal
• parabituminous coal
• medium-volatile bituminous coal
• semidull coal
• Bituminous Coal