Either osmium or iridium is the element with the highest density; however, scientists have yet to gather enough conclusive data to choose between the two. When traditional methods of measurement are employed, osmium generally appears to be the densest element. Yet, when calculations are made based upon the space lattice, which may be a more reliable method given the nature of these elements, the density of iridium is 22.65 compared to 22.61 for osmium.