The heat of nature creates changes in the contents that make our off-white river pebbles combine and interact. An extra element that can change these is the pressure induced by tons of different rocks suppressing down on them from above. In addition, pressure and heat normally function together to change these pebbles below the earth's surface. Therefore, this type of alteration that results from rising pressure and temperature is known as metamorphism as well as the resulting product is our off-white river pebbles. They are a beautiful element of the customers’ numerous modern gardens.