👉 Bleaks are small, irregularly shaped features that can appear on the surface of a rock or soil. These features can be formed by a variety of processes such as erosion, weathering, or mechanical deformation. They can vary in size and shape, but they typically have a rough texture and may be brown, gray, or black in color. Bleaks are often associated with rocks that have been exposed to high levels of moisture, such as those found on the surface of wetlands or near
