pile of black charcoal pieces and chunks on white background. natural hardwood charcoal

particles emission brittle dirty industrial hard purification fragments pieces mineral dust dark nugget firewood shiny clipping chunk furnace briquette rock charcoal black texture burn power industry isolated hunk coal background resource natural energy carbon white pile fuel heat object ground stone combustible mine piece warmth shale fire anthracite soot lump chunks hardwood sculpture art iron monochrome statue drawing monument sketch cartoon carving illustration head font relief