| Mineral | Tourmaline (Verdelite) |
|---|---|
| Chemistry | A(D3)G6(T6O18)(BO3)3X3Z |
| Color | Green - Vivid Green |
| Refractive Index | 1.624 - 1.644 |
| Birefringence | 0.018 - 0.040 |
| Specific Gravity | 3.06 |
| Mohs Hardness | 7.0 - 7.5 |
10.90ct (TG1784)
9.95ct (TG1783)
12.86ct - 15x13mm (TG1782)
19.90ct (TG1780)
14.86ct (TG1778)
26.89ct (TG1776)
15.74ct (TG1775)
5.20ct (TG1774)
5.38ct (TG1773)
5.55ct (TG1772)
5.08ct (TG1771)
6.95ct (TG1770)
14.89ct (TG1769)
1.30ct - 7mm (YT0168)
3.66ct (TG1742)
6.05ct (TG1740)
6.93ct - 11mm (TG1732)
4.40ct (TG1634)
12.84ct (TG1530)
5.03ct (TG0741)
29.69ct (TG0445)
25.95ct (TG0434)
105.53ct (TG0308)
64.71ct (TG0260)