Praseodymium, Pr, atomic number 59. Melting point 1208K. This is a soft and malleable metal. It is a rare mineral used for a variety of purposes including: a component in enhanced magnets, an alloy component for metals and laser optics.
— In-Game Description
Praseodymium is a metal commodity in the galaxy. It can't be bought on the market so it must be mined.