- "They have been fitted with special mining charges, cave crackers they call them. They'll tear this planet open like a rotten fruit, and my men will mop up the remains."
- ―Wilhuff Tarkin
Cave crackers were a type of powerful mining charges. The Imperial governor Wilhuff Tarkin wanted to use such charges on Agaris to crack the planet's upper crust open so his men could mine the quadanium it contained more easily.
- Adventures in Wild Space: The Rescue (First appearance)