The average density of United States Desert Grey Calcarenite, also known as desert rock or desert sandstone, can vary depending on its specific composition and properties. However, as a general estimation, the density of calcarenite can range between 1.5 to 2.7 grams per cubic centimeter (g/cm3) or 1500 to 2700 kilograms per cubic meter (kg/m3). It is worth noting that these values are approximate and can vary slightly in different regions or locations within the United States.