Not all hydrophane opals need treatment to bring out their beauty. "Precious opal (Shewa Province, Ethiopia) 9" by James St. John. Licensed under CC BY 2.0.
Translucent White Play-of-Color Opal Stone Rough from Ethiopia
Not all hydrophane opals need treatment to bring out their beauty. "Precious opal (Shewa Province, Ethiopia) 9," photo by James St. John. Licensed under CC By 2.0.
Article: Opal Treatments: How to Detect Treated Opals
Credit: James St. John
| Gemstone | Opal Stone |
| Natural or man made | Natural |
| Origin | Ethiopia |
| Origin details | Shewa Province |
| Gem State | Rough |
| Color | White |
| Transparency | Translucent |
| Photo phenomena | Play of Color |