which is the main difference from ...The ratio of volume to mass of bulk material is the density of crushed stone in working condition. This parameter affects the strength of the stones up to about four miles away from ground zero alongside...Nowadays with a national standard radiation safety certification. The radiation to the human body is 1/4 of the standard safe ...The quantity of silica contained in stone and other materials varies considerably between different types of stone: Approximate crystalline silica content of different materials Sandstone 70–90% Concrete
