As you play through Path of Exile 2, you’ll come across lots of different types of currencies: Orbs, Scraps, Whetstones, Baubles, Etchers, Prisms, Mirrors, and Shards. Each and every one of these has its uses, whether it’s for leveling up your character, improving your gear, completing story content, or multiple of the above. That is to say that you’ll need to learn how each type of currency is found, and what it’s used for, in order to progress and put together a decent build in Path of Exile 2.

https://screenrant.com/path-of-exile-2-currency-exchange-rate-list/