Holo Dust will be one of the main in-game materials, this will be used in many ways but primarily in crafting. Aside from things costing certain unique materials to that particular craft, most of them will require the addition of holo dust to finish the blueprint along with burning some zing in the holoverse. Our plans at this time are that most things in the game will have a "base" holo dust and zing cost.
I took the quote from the official announcement post.
Looks like Holo-Dust will be an important aspect of the game.
