Blue Meteor Fragments , of course it is! Sparkles and GLOWS IN THE DARK. Our most popular novelty item. Comes in many shapes. A blue Kryptonite is a mineral from the planet Krypton that removes inhibitions from Kryptonians and humans alike making them reckless, evil, and dangerous. Hey... it's from Metropolis Illinois "Home of Superman". Each piece is about fist sized. Pictures shows four to show differing shapes. Listing is for one piece of meteor fragment.