Ключевые слова: abstract, back, backdrop, background, boulder, bowlder, cement, chunk, ciment, closeup, clump, cobble, concrete, conformation, construction, cutless, design, detail, dirt, formation, framing, gangue, grain, gravel, green, grey, ground, lump, moss, ornament, pattern, pavement, relief, road, rock, rough, rust, seamles, seamless, squared, stone, structure, surface, texture, tile, tiled, wall,