Filamentous actin is polar and, therefore, the two ends of the filament are different. Because of this polarity, the filaments often fit into other cellular structures in only one orientation, in a similar manner to how many of the parts of man-made structures are assembled. Growth, the addition of monomeric actin to the filament, occurs predominantly in one direction; the plus direction.
Larger landscaping rocks, such as boulders, can cost upwards of $800 per ton. For example, a volcanic rock can cost $600 per ton, and an Artic white boulder can cost $150 per ton. Natural stone edging, ideal for gardens and walkways, can cost $200 to $600 per ton.
Despite the rock prices above, there are certain factors that will affect your landscape rock installation cost. Keep all in mind before you purchase decorative rocks for your yard. Type: As you already saw, certain landscape rocks cost more than others. In fact, Mexican beach pebbles is 20 times more than decomposed granite. Therefore, the type of landscape rock you choose will drastically affect the total landscaping cost. Rock Sizes: All landscape rocks previously mentioned range in size from 0.25â in diameter to 4â in diameter. Larger rocks cost more, but they can cover more ground. Nonetheless, they factor into your landscaping rock price.