Doing a bit of math, since the bead is a Troy ounce bead the volume of it is 32.103/22.59 = 1.37684 cubic centimeters a piece of lithium with the same mass would have a volume of 58.2453183521 cubic centimeters assume both the osmium and the lithium were fully dense cubes, the Troy ounce osmium cube would would have an edge length of roughly 1.1124 centimeters, whereas the Troy ounce lithium cube would have an edge length of roughly 3.8763 centimeters osmium is just barely more than 42 times as dense as lithium is,
Pretty metals, I love how the Gallium and Osmium side-by-side comparison shows that both metals have a slightly blue tint! (although Osmium is slightly bluer)