UV Reactive Seven 4.25” Diamond Etched Fine Lead Crystal Glasses

Seven glasses
Size: 5.25” tall
No chips No cracks

Contains Manganese & Lead— UV Reactive under 365nm & 245nm

Manganese is one of the oldest glass additives and was used in small quantities to de-colorize (remove the green tint from glass to make clear) and in higher contents to colorize glass. Manganese can be found in nearly all colors of glass, especially amethyst and turquoise blue glass. Manganese fluoresces green under 365nm UV light, often being confused with Uranium.

Leaded crystal fluoresces blue under a short-wave 254nm UV light.

*PLEASE NOTE: Color of glass and glow may vary slightly from photographs due to variations in screen hues and nm of black light used to produce glow. The type of Ultraviolet light and the color of visible light is determined by its wavelength. The unit of measurement for light wavelengths is the nanometer (nm). Ultraviolet light is generally considered to be from 200 nm to 400 nm.