Uranium Glass (Swiss Stories 2019, by Stefan Wermuth) - Swiss Press Award
Stefan Wermuth
A Pernod opalex ashtray, a 1950's Gablonz Uranium Glass ring and a 1940's Uranium Glass soda siphon are seen in Wangen an der Aare, Switzerland, January 23, 2018.
Reuters
Photo / Swiss Stories
2019
Stefan Wermuth
Uranium Glass or yellow pearline is called vaseline, because the shade is similar to the color of petroleum jelly - until it's exposed to ultraviolet light, when it glows a bright green.
The glass is slightly radioactive, enough to register on Geiger counters. But the levels are about the same as electrical appliances like microwave ovens emit, so they represent no threat to health.
