Earth Crystal is a rare mineral which spawns randomly in the Mines and can also be found in geodes. They're also a common drop from Duggies. An Earth Crystal can be donated to Gunther at the museum. It can be sold for 50g. Retrieved from "https://stardewvalley.fandom.com/wiki/Earth_Crystal?oldid=35287" Categories: Items Minerals Community content is available under CC-BY-SA unless otherwise noted.