Rock nerds, meet your new favorite sign. This geology cleavage joke sign pairs classic miner grit with a double entendre only true mineral lovers will appreciate. Featuring a determined woman miner examining a glowing specimen deep underground, the punchline? “Look at that cleavage”—because we all know cleavage isn’t just about curves, it’s about crystal structure. This 7"x9" metal sign is funny, edgy, and perfect for geology classrooms, rock shops, dig sites, or collectors who love a little dirty humor with their science.
Size: 7" x 9" metal sign
High-quality sublimation on matte-finish aluminum
Comic-style art with rich detail and a cheeky caption
No pre-drilled holes – easy to frame or lean for display
Designed in-house for science-savvy rockhounds and collectors
This geology cleavage joke sign breaks more than just rocks—it breaks the ice and cracks a smile.