Opal Stone – Natural, Faceted, Green
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 |