Rough specimen of black coal, a combustible sedimentary rock on a white background

---

Size: 3667px × 2445px
Photo credit: © Micha Klootwijk / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: beautiful, black, chemical, closeup, coal, color, combustible, crystal, crystalline, detail, geology, isolated, macro, mineral, mineralogy, natural, rock, rough, sedimentary, specimen, stone, structure, treasure, uncut, unpolished, valuable