Raak is a valuable gem found exclusively on Skrap.
There are several different varieties of Raak, which form in nearly all the colors. Gems of red, blue, and clear are the most prized. Its hardness falls around 6.
Some types of Raak (usually those of dull colors) are relatively common and therefore relatively cheap. The colorful varieties, on the other hand, are very valuable and expensive. It is often sold in jewelry.
The value of this precious gem draws many pirates and black market traders to Skrap, in the hope that they find it when they mine the cliffs. Licenses and permits are required to legally mine raak, although illegal harvesting is still common. It is a risky business, and miners often fall prey to Sklashers or Sand Snakes.