A great find. © Bonanza Opal Mines, Inc. Used with permission.
Translucent Black Play-of-Color Black Opal Rough from United States
A great find. © Bonanza Opal Mines, Inc. Used with permission.
Article: Mined in America: Top Spots for Gem Hunting in the US
Credit: Bonanza Opal Mines, Inc
| Gemstone | Opal Stone, Black Opal, Precious Opal |
| Natural or man made | Natural |
| Origin | United States |
| Origin details | Bonanza Opal Mines |
| Gem State | Rough |
| Color | Black |
| Transparency | Translucent |
| Photo phenomena | Play of Color |