Chrome tourmaline, like the crystal on this quartz matrix, gets its intense green color from the presence of chromium. This crystal weighs 66.65 cts. Merelani Hills, Arusha, Tanzania. © Rob Lavinsky, www.iRocks.com. Used with permission.
Green Tourmaline Specimen
Chrome tourmaline, like the crystal on this quartz matrix, gets its intense green color from the presence of chromium. This crystal weighs 66.65 cts. Merelani Hills, Arusha, Tanzania. © Rob Lavinsky, www.iRocks.com. Used with permission.
Article: Advice For Grading Dark Colored Gemstones
Credit: Rob Lavinsky, www.iRocks.com
| Gemstone | Tourmaline, Chrome-Tourmaline |
| Natural or man made | Natural |
| Gem State | Specimen |
| Color | Green |
| Transparency | Transparent |