Iron, ore crushed weighs 2.5 gram per cubic centimeter or 2 500 kilogram per cubic meter, i.e. density of iron, ore crushed is equal to 2 500 kg/m³. In Imperial or US customary measurement system, the density is equal to 156.07 pound per cubic foot lb/ft³, or 1.45 ounce per cubic inch oz/inch³.
Solid rock is estimated at 2.5 to 3tons per cubic meter. If rock is crushed into uniform sizes, the presence of open space between the particles causes the load to be lighter approximately 1.6 tons per cubic meter. Mixed sizes of crushed rock can range from 1.6 to 2.2 tons per cubic meter.