The Periodic Element Guys present 1 x 500 grams of Pure Arc Melted Rhenium Bead pellet.
Rhenium is a very rare metal, with its tiny share in the earths crust, believed to be a maximum of 1 part per billion. It has an extremely high melting point, third in the periodic table. It also has the second highest boiling point. In 2008 Rhenium was selling for over $10,500 per Kg. Although the price has come down, it is still in extremely high demand for the small amount produced every year, estimated to be about 40 tons. And here you can buy 500 grams of that tiny amount.
Lead time is about 2 weeks and this product cannot be cancelled once ordered because of the expenses involved to make it.