Blue spinels, Dry Gulch, South of Helena, Montana, USA. Main crystal, 1.7 cm, embedded in quartzite matrix. © Rob Lavinsky, www.iRocks.com. Used with permission.
Opaque Blue Spinel Specimen from United States
Blue spinels, Dry Gulch, South of Helena, Montana, USA. Main crystal, 1.7 cm, embedded in quartzite matrix. © Rob Lavinsky, www.iRocks.com. Used with permission.
Article: Spinel Buying Guide
Credit: www.iRocks.com
| Gemstone | Spinel |
| Natural or man made | Natural |
| Origin | United States |
| Origin details | Dry Gulch, South of Helena, Montana |
| Height | 17 |
| Gem State | Specimen |
| Color | Blue |
| Transparency | Opaque |