Ziri crystals are small, grape-sized, bluish crystals, slightly glowing in the dark. Means of payment, which is used by Zelirians and Umari.
It is mined exclusively by gathering – ziri crystals can be found in the ground throughout the territory of Zeliria, but most of them lie deep underground in the forests, which makes their purposeful mining extremely difficult. Especially considering that in one core there are rarely more than three or four crystals.
In fact, a Ziri crystal is the pressed bio-waste of Salangans. As a result of a small accident (hell explosion) at a waste processing plant shortly before the Exodus, a large number of them turned out to be scattered over a large area. The guilty were beated.