pile black charcoal or coal on white background. gravel or crushed stone for road construction and reconstruction, poured with

white black coal flying stream debris piece stone abstract background block cobble cobblestone floating rock rough ruins mineral shape asteroid carbon charcoal closeup explosion geological stack broken scrap crushed shattered pile heap splinter segment fragment design material solid boulder cartoon rubble fuel anthracite chunk combustible industry raw illustration gravel for road construction reconstruction poured bitumen energy varied background bitumen industry design