Lot is thirteen pieces of tumbled uranium/vaseline glass. These pieces are worn smooth, and glow brightly in UV light.
Thickness is ideal for jewelry/bezel.
WHY DOES THIS GLASS CONTAIN URANIUM?
Prior to the invention of the atomic bomb, the #1 industrial use for uranium was to give manufactured glass a distinct, bright shade of green. Believe it or not, this is not a recent invention!
Samples of glass containing uranium has been found that dates all the way back to the Roman empire. This time-honored way of dying class was only abandoned when stocks of of uranium were secured by governments (to make big bombs) and medical companies (for reasons too numerous to mention, here.) They heyday of uranium glass was the early 20th century, when millions of pieces of "depression glass" were made- many of which used Uranium as a colorant. These pieces still crop up today in second-hand stores and antique shops.
IS IT SAFE?
Absolutely. The Uranium has been diffused to such an extent that it emits very little radiation, and glass is a natural inhibitor of radiation.
WHY DOES IT GLOW?
When hit with an ultraviolet light, uranium glass emits a bright, unearthly glow that is imminently unique and eye-catching.
This is because uranium, by nature, is an unstable element. When uranium glass is hit by a UV light, some of the electrons you are shining on the glass knock electrons within the uranium from one orbit to another, creating what is called a "photon." This releases a small bit of energy, which is radiated outward. We humans perceive this energy as light in the green part of the spectrum.
IS THIS NATURAL SEA GLASS?
No. This is reclaimed uranium glassware that has been put through extensive tumbling. However, I have taken care to make the tumbling process produce smooth, well-frosted pieces that are almost indistinguishable from real sea glass. These pieces are sure to add an unforgettable flair to your craft project.