In one of those quirks of nature, it just so happens that laser beams that pass through glass that is doped with holmium metal emit energy at juuuust the right level that it is especially adept at blowing away…. wait for it…. prostate tissue! I don’t remember hearing anything on the news about the urologist who stumbled upon this discovery but untold numbers of aging men the world over owe thanks to this pioneering work. The things you learn on Luciteria!

Prostate-busting lasers aside, holmium is another rare earth element with a growing number of industries finding use for this metal. While its colorful oxides have traditionally been used in dyeing glass and ceramics, high-performance magnets and LEDs are now soaking up every kilogram that comes out of the Chinese refineries that produce it.

Measures 15x8x1mm