Coal. Bituminous (L) and anthracite (R).April 30, 2017/in /by Marli Miller Resources, sedimentary, energy, samples https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png 0 0 Marli Miller https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png Marli Miller2017-04-30 20:23:122017-09-04 16:03:05Coal. Bituminous (L) and anthracite (R).
