Australian opal, 5cm. Photo by Hannes Grobe. Licensed under CC By-SA 2.5.
Opaque Blue Play-of-Color Opal Stone Other from Australia
Australian opal, 5 cm. Photo by Hannes Grobe. Licensed under CC By-SA 2.5.
Article: Opal Mining in Coober Pedy: History and Methods
Credit: Hannes Grobe
| Gemstone | Opal Stone |
| Natural or man made | Natural |
| Origin | Australia |
| Origin details | Coober Pedy |
| Height | 50 |
| Gem State | Other |
| Color | Blue |
| Transparency | Opaque |
| Photo phenomena | Play of Color |