White opal with matrix found at Coober Pedy. Photo by Dpulitzer. Licensed under CC By-SA 3.0.
Translucent White Play-of-Color Opal Stone Rough from Australia
White opal with matrix found at Coober Pedy. Photo by Dpulitzer. Licensed under CC By-SA 3.0.
Article: Opal Mining in Coober Pedy: History and Methods
Credit: Dpulitzer
| Gemstone | Opal Stone |
| Natural or man made | Natural |
| Origin | Australia |
| Origin details | Coober Pedy |
| Gem State | Rough |
| Color | White |
| Transparency | Translucent |
| Photo phenomena | Play of Color |