Hyalite opal, normal light. Photo © Rob Lavinsky, www.iRocks.com. Used with permission.
Colorless Opal Stone Specimen
Hyalite opal, normal light. Photo © Rob Lavinsky, www.iRocks.com. Used with permission.
Article: Eight Opal Types Explained
Credit: Rob Lavinsky
| Gemstone | Opal Stone |
| Natural or man made | Natural |
| Gem State | Specimen |
| Color | Colorless |
| Transparency | Transparent |