Dye testing can help gemologists determine if a porous gemstone like turquoise has been dyed to darken its color. Turquoise ring. Photo by Katy Warner. Licensed under CC By-SA 2.0.
Opaque Blue Turquoise Cabochon in Ring
Dye testing can help gemologists determine if a porous gemstone like turquoise has been dyed to darken its color. Turquoise ring. Photo by Katy Warner. Licensed under CC By-SA 2.0.
Article: Destructive Gemstone Tests: Dye Testing
Credit: Katy Warner
| Gemstone | Turquoise |
| Natural or man made | Natural |
| Jewelry type | Ring |
| Gem State | Cabochon |
| Color | Blue |
| Transparency | Opaque |