Ключевые слова: abstract, abstraction, architecture, art, backdrop, background, ball, boulder, bowl, bowlder, circle, coarse, color, crack, decoration, decorative, design, durable, element, firmness, globe, granite, granitic, gray, grey, hard, hardness, heavy, isolated, limestone, lithic, mineral, orb, ornamental, pattern, poriferous, rock, rough, round, shape, single, sphere, spherical, stone, stony, strong, surface, texture, textured, white,