| During cupellation, osmium and ruthenium are partly volatilised and iridium is partly absorbed by the cupel. |
| It is also classified with a group of similar metals, including ruthenium, rhodium, palladium, osmium, and iridium, with similar properties. |
| Along with ruthenium, rhodium, osmium, iridium, and platinum, it belongs to the platinum group of metals. |
| The tissue was subsequently postfixed in osmium tetroxide and embedded in epoxy resin. |
| The samples are of particular interest to geologists because they contain large amounts of the element, osmium. |
| Other examples of relative isotopic dating are the deuterium variations in ice cores and the osmium isotope record of marine sediments. |
