| 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 |
2.62ct (TG1660)
2.69ct (TG1658)
1.72ct - 9x7mm (TG1656)
2.35ct (TG1654)
2.54ct (TG1650)
2.54ct - 10x8mm (TG1649)
2.99ct - 10x8mm (TG1648)
4.62ct - 12x10mm (TG1640)
5.49ct (TG1638)
5.47ct (TG1637)
7.14ct (TG1630)
5.13ct (TG1629)
5.14ct (TG1628)
5.29ct (TG1627)
6.19ct (TG1626)
6.57ct (TG1624)
7.46ct (TG1623)
9.31ct (TG1622)
7.55ct (TG1621)
8.94ct - 14x12mm (TG1620)
17.51ct - Pair (TG1616)
9.12ct (TG1614)
10.07ct (TG1610)
5.24ct (TG1598)