Mineral | Tourmaline |
---|---|
Chemistry | A(D3)G6(T6O18)(BO3)3X3Z |
Color | Vivid Red |
Refractive Index | 1.62 - 1.64 |
Birefringence | 0.018 - 0.040 |
Specific Gravity | 3.06 |
Mohs Hardness | 7.0 - 7.5 |
4.01ct (RL0068)
8.67ct (RL0067)
9.57ct (RL0066)
10.97ct (RL0052)
35.55ct (RL0036)
7.23ct (RL0013)