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Go "Nuclear" with
your lasers!!
These are special marbles made of
uranium-doped glass, often referred to as "uranium-glass" or "Vaseline-Glass".
The really neat thing about these
curiosities is the way they fluoresce in the presence of a black light or 405nM Laser. They may be used as a target in "distance-experiments",
or to create unique light-effects*.
Due to the Uranium
used to color the glass, these marble are slightly radioactive, estimated as about twice the normal background
radiation at sea-level although I do not have the equipment to verify this, however a few of my customers have reported similar
findings with their geiger-counter equipment.
The package comes with (2) 5/8"dia Uranium Marbles housed in a "acrylic-vial" capped with GITD
inserts which will allow and ghostly after-glow, and heavy-rubber "caps" to hold everything together.
A must-have accessory for your 405nM laser-kit!
They are completely
safe*, legal and really light up around the 405nM lasers.
*These are glass and may cause stray-reflections, always use proper eye-protection
when using any laser-equiptment.
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