The coefficient of friction of Water Jet Cut Turkeys Light Yellow Travertine tiles depends on several factors including the finish of the tiles, the surface they are installed on, and the presence of any sealants or coatings. Without specific information, it is difficult to provide an exact value. However, travertine generally has a low to moderate coefficient of friction, ranging from around 0.4 to 0.6. Please note that this value may vary, so it is important to consult with the manufacturer or supplier for precise information.