11. It also shows many lines of uranium, and possibly the rare element holmium . 12. Holmium is named after " Holmia ", which is Latin for Stockholm.13. Holmium bromide reacts to strong oxidising agents.14. Holmium is rare for a lanthanide.15. The most efficient separation routine for holmium oxide from the rare-earths is ion exchange. 16. Because holmium strongly absorbs neutrons, it is also used as a burnable poison in nuclear reactors. 17. Holmium in solution is in the form of Ho 3 + surrounded by nine molecules of water.18. Holmium makes up 1.4 parts per million of the earth's crust by weight.19. When involved in a fire, holmium bromide may release hydrogen bromide, and metal oxide fumes. 20. Holmium is one of the colorants used for cubic zirconia and glass, providing yellow or red coloring.
