DUMORTIERITE: Nevada (~2 inches across); Ogilby, California (~1 inch across). Photo © Joel E. Arem, PhD, FGA. Used with permission.
Opaque Black Dumortierite Rough from United States
DUMORTIERITE: Nevada (~2 inches across); Ogilby, California (~1 inch across). Photo © Joel E. Arem, PhD, FGA. Used with permission.
Article: Dumortierite Value, Price, and Jewelry Information
Credit: Joel E. Arem, PhD, FGA
| Gemstone | Dumortierite |
| Natural or man made | Natural |
| Origin | United States |
| Origin details | Nevada, California |
| Gem State | Rough |
| Color | Black |
| Transparency | Opaque |