Benitoite
Extremely rare benitoite has a strong blue fluorescence under UV light. Benitoite and neptunite under UV light, photo by Géry Parent. Public Domain.
Article: Ultraviolet Testing and Gemstone Identification
Credit: Géry Parent
Gemstone | Benitoite |
Natural or man made | Natural |
Gem State | Specimen |
Color | Blue |
Transparency | Translucent |
Photo phenomena | Glow in the Dark |