The four types
Geodes (mine floors 1–39) yield basic minerals and resources; frozen geodes (floors 41–79) add ice-adjacent finds; magma geodes (floors 81+) the deeper tier; and omni geodes (everywhere, desert and fishing chests) roll everything including rare gems. Clint at the blacksmith opens them for 25g each.
Donate first, sell second
New minerals and artifacts go to the Museum first — donations unlock rewards and the museum’s completion bonus. Duplicates become money or crafting inputs (refined quartz from quartz is a sprinkler and lightning rod ingredient). Omni geodes can also be processed at the Oasis for better odds on rare finds.
The desert loop
Once the bus runs, Omni geodes become a full economy: buy omni geodes (or hoard them from the mines), process, donate new finds, sell duplicates, and feed the rare gem side into crafting. This loop pairs naturally with Skull Cavern runs — the deeper you go, the more raw material the loop consumes.
