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Cobalt UV Uranium Glass Mini Micro Marbles in their jar beside studio branding and a blue-and-white hard case in ordinary light
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Cobalt UV Uranium Glass Mini Micro Marbles revealing a bright green glow under a black light in their jar
Shown under a black light / UV light.
Cobalt UV Uranium Glass Mini Micro Marbles in a corked jar beside a white-and-blue hard case in ordinary light
Cobalt UV Uranium Glass Mini Micro Marbles in their jar with green fluorescence revealed by a black light
Loose cobalt blue Mini Micro Marbles with their black light keychain, open jar and hard case in ordinary light
Loose Cobalt UV Uranium Glass Mini Micro Marbles glowing green under UV light beside their jar and hard case
Shown under a black light / UV light.
Close view of cobalt blue ribbons in loose Cobalt UV Uranium Glass Mini Micro Marbles in ordinary light
Loose Cobalt UV Uranium Glass Mini Micro Marbles beside their open jar showing blue glass ribbons in ordinary light
Corked jar of cobalt blue Mini Micro Marbles held in hand for scale in ordinary light
Shown in hand for scale.
Close view of Cobalt UV Uranium Glass Mini Micro Marbles glowing green in their jar held in hand for scale
Shown in hand for scale; black light / UV light reveals the glow.

Cobalt UV Uranium Glass Mini Micro Marbles

Available

$55.00

Includes a FREE keychain black light!

Rich cobalt blue ribbons give this beautiful set of uranium-glass Mini Micro Marbles a hidden surprise. Their UV glow stays concealed in everyday light—shine a black light on them, and a brilliant green glow is revealed. A keychain black light is included with each jar.

Welcome to the world of collecting Stuckenberg’s World Famous Mini Micro Marbles—the smallest and most detailed micro marbles in the world!

Each Mini Micro Marble is individually handmade and rounded one at a time in front of the torch. Special care and attention go into every marble. I mix, layer, and hand-twist the glass to create vibrant colors and fine details in these tiny, collectible sizes.

🎁 Includes a FREE mystery gift!
• FREE Signature Hard Case Display Box, made in-house
• FREE keychain black light

Hard case colors are very limited right now, so the case included with your marbles may differ from the color shown in the photos. We apologize in advance as we work to catch up. If you’re looking for a certain case color, please let us know—we’ll do our best.

Glass stands shown in the photographs are for display purposes only and are not included.