Opalized bivalve found in Coober Pedy. Photo by James St. John. Licensed under CC By 2.0.
Opaque Orange Play-of-Color Opal Stone Specimen from Australia
Opalized bivalve found in Coober Pedy. Photo by James St. John. Licensed under CC By 2.0.
Article: Opal Mining in Coober Pedy: History and Methods
Credit: James St. John
| Gemstone | Opal Stone |
| Natural or man made | Natural |
| Origin | Australia |
| Origin details | Coober Pedy |
| Gem State | Specimen |
| Color | Orange, Green, Purple |
| Transparency | Opaque |
| Photo phenomena | Play of Color |