Traction: What to Expect. The specifics of the traction therapy a person receives depends on the source of pain in their neck and spine. In most cases of mechanical traction, 7 to 10 pounds of weight will be applied for a half-hour, often two or three times daily.
Sandstone (sometimes known as arenite) is a clastic sedimentary rock composed mainly of sand-sized minerals or rock grains. Most sandstone is composed of quartz and/or feldspar because these are the most common minerals in the Earth's crust.
Sandstone is a sedimentary rock composed of sand-sized grains of mineral, rock or organic material. It also contains a cementing material that binds the sand grains together and may contain a matrix of silt-or clay-size particles that occupy the spaces between the sand grains.