- "The unit cell stacking in the synthetic isn't stable enough. We'll have to run a spectrographic autopsy and begin again. The entire batch of boules might be flawed."
- ―Galen Walton Erso
Boules were ingots of synthetic crystals. Galen Walton Erso worked with boules in his crystallography research.[1]
Appearances
- Catalyst: A Rogue One Novel (and audiobook) (First appearance)