Close-Up Texture of Gravel and Coarse Sand

photorealistic close-up top-down view of a dense layer of tiny gravel and coarse sand, full-frame seamless natural ground texture, small irregular pebbles and crushed stone fragments, varied grain sizes, sharp gritty detail, dry rough surface, earthy tan beige brown gray and off-white speckles, even diffuse daylight, no horizon, no objects, no shadows, macro texture photography, high detail, realistic mineral flecks