Let's take a look at the limited edition Pelikan Edelstein Olivine!

Every year, Pelikan develops an ink based off of a mineral or gem for a special, limited edition release known as the Edelstein Ink of the Year. Since 2015, there has also been a demonstrator tinted to match the ink. In 2016, this pen and ink combo was Aquamarine: a blue-green that's more dark than light.