Opal Stone
With trace amounts of uranium compounds, this hyalite opal is slightly radioactive and fluoresces under ultraviolet light. Photo by James St. John. Licensed under CC By 2.0.
Article: Toxic and Radioactive Gems: Safety Tips
Credit: James St. John
Gemstone | Opal Stone |
Natural or man made | Natural |
Jewelry type | necklace |
Gem State | Faceted |
Color | Green |
Transparency | Transparent |
Photo phenomena | Glow in the Dark |