Vintage 1940’s Austrian URANIUM Glass & Green Aurora Borealis Brooch Pin Circle Dogtooth Multi Dimensional Domed Prong Set Uranium glass austria crystal brooch. Gorgeous brooch! Lights up under black light! This round, slightly domed brooch is set with uranium glass and Austrian green Aurora Borealis. The brooch is in excellent vintage condition with exquisite construction and craftsmanship that you can only find in the vintage pieces! The item approx measures 2-3” across the top in diameter.