Are your pieces real uranium glass?
I take great care to ensure all of my items are true uranium glass. This is my passion and my full-time job, and I take the integrity of my products very seriously. I have put tens of thousands of hours of research into what is and isn't uranium glass.
Vintage sterling vermeil uranium glass bracelet
As part of my research, I asked the Library of Congress to photograph their green glass Claude Laurent flute under a UV light, and they did and sent me this photo
Uranium glass is identified with a UV blacklight, and it's only uranium glass if the item is truly glass, not another material, and fluoresces the telltale bright neon green. If a piece of glass glows bright green in UV light then it contains uranium. No other material or element in glass has that effect. Because of this, uranium glass cannot be faked. Even if it could, it's not cost-effective to do so - uranium glass is cheap and plentiful. All of my beads are high-quality Czech uranium glass. Other jewelry components such as resin, plasic, enamel, paint, acrylic, powder coating, glow-in-the-dark materials, some gemstones, and even adhesive can fluoresce bright green like uranium, so it is imperative for a collector and seller of such glass in jewelry to make sure the glowing item is truly glass.
Vintage Czech-made vaseline glass beads in my shop
Uranium glass beads are still produced in large amounts in Czech Republic
Please note that there are some pieces of glass in the colors pink, purple, light blue, and clear, that will glow a dull green, much more dull than the uranium glow. These pieces are glowing because of manganese, not uranium. Manganese was primarily used as a glass clarifier, which is why much of it is clear. Uranium glass will never be clear because uranium dioxide was used as a colorant.
Purple manganese glass necklace
Note how dull the green glow is compared to the uranium glass glow