Leonite perched on a matrix of halite
- ... that leonite (pictured) has been found on Mars?
- ...that crystals of Paulingite, a rare zeolite mineral found in vesicles in the basaltic rocks from the Columbia River, form a perfect clear rhombic dodecahedron?
- ... that abernathyite is both fluorescent and radioactive and is named for the mine operator who discovered it?