Vintage UV Cadmium Glass Cabochon Red Faceted Flat Back 23mm

If a piece of glass glows bright green in UV light then it contains uranium. Uranium glass is glass made with up to 2% uranium dioxide for color. The uranium content causes the glass to fluoresce bright green under a UV blacklight.

Craftdady 12pcs Antique Bronze 12 Constellation Zodiac Pendants Bezel Tray with 12pcs Glass Cabochons Dome Tiles Clear Cameo for Crafting DIY Jewelry Making

No Cadmium

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