Crystal dust is obtained from mining crystal ore. You get about 6 of them when mining this ore. You can also get a crystal piece, a crystal nugget, a crystal gem or the ore itself from mining the ore.
The crystal dust can be made into a crystal piece. Which is one of the many steps in making the healer.
There will be other uses for just plain crystal dust in the future.
This drops the most from the ore.
As a Crafting Ingredient
|Icon||Achievement||In-game description||Prerequisites||Other||Version Added|
|Rare Ores!||Obtain crystal ore, gem, nugget, piece or dust||Acquire Hardware||15w11a/Beta 2.0|
|1.8||Added crystal dust.|
- Was purely added to make the healer harder to get.