Add a literal piece of atomic history to your collection! This fascinating 16mm Uranium Glass Marble is the ultimate pocket-sized curiosity. Mildly radioactive and wildly captivating, this vintage-style swirl marble transforms from a subtle, cream-and-blue marble in daylight into a brilliant, fiery neon green the second it hits ultraviolet light.

Whether you’re an avid marble collector, a vintage glass enthusiast, or a science nerd looking for the ultimate desk toy, this complete kit has everything you need to see the glow right out of the box.

📦 What’s Included:

1x Authentic Uranium Glass Marble: Approximately 16mm in size, featuring beautiful, unique daylight swirls of cream, soft blue, and pale jade.
1x Pocket Keychain 365nm UV Light: A handy, entry-level starter light so you can test and reveal the hidden glow immediately.
1x Premium Display Case: A clear, circular gem case with a secure black foam insert that holds your marble perfectly in place for display or safe travel.

✨ Features You'll Love:

The Ultimate Reactive Glow: Made with real, trace amounts of uranium dioxide, giving it that iconic, unmistakable neon UV reaction.
Unique Daylight Aesthetics: Unlike plain transparent glass, these feature a beautiful opaque slag-style swirl pattern—meaning no two marbles are exactly alike!
Perfect Gift for Nerds & Collectors: An unforgettable conversation piece for rockhounds, antique lovers, teachers, and science enthusiasts.

🛑 FAQ & Safety Information

Is it safe to handle? Yes! The amount of radiation emitted by a single 16mm uranium glass marble is incredibly low—often less than the ambient background radiation you receive from everyday sunshine or a kitchen granite countertop. It is completely safe to hold, display, and keep on your desk. (Just keep it out of your mouth—standard marble safety rules apply!).

Marble Size: ~16mm (Standard player size; slight variations occur due to the swirl glass manufacturing process)
UV Light Wavelength: 365nm (Pocket-sized keychain light; battery included)

💡 Collector's Tip & Upgrade:

The included keychain light is great for a quick, portable glow on the go. However, to truly unlock the maximum brightness and capture those jaw-dropping, ultra-vibrant photos, you'll want a heavy-duty beam.

👉 Want the ultimate glow? Check out our shop listings to grab our Pro 365nm UV Flashlight! It packs way more power, floods the glass with pure UV, and makes this marble look like it's plugged directly into an electrical outlet. Add it to your cart to instantly upgrade your collection!

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