Mineral | Tourmaline (Elbaite) |
---|---|
Chemistry | Na(Li1.5,Al1.5)Al6Si6O18(BO3)3(OH)4 |
Color | Green - Blue |
Refractive Index | 1.624 - 1.644 |
Birefringence | 0.018 - 0.040 |
Specific Gravity | 3.06 |
Mohs Hardness | 7.0 - 7.5 |
15.57ct (PG0544)
13.88ct - 14x12mm (PG0539)
2.24ct - 9x7mm (PA2065)
1.89ct (PA2064)
3.00ct (PA2063)
1.61ct - 9x7mm (PA2062)
3.05ct (PA2061)
3.68ct (PA2060)
3.58ct (PA2059)
4.54ct - 9x7mm (PA2058)
3.78ct - (PA2057)
5.20ct - (PA2056)
3.44ct - 10x8mm (PA2055)
4.20ct (PA2054)
2.74ct - 10mm (PA2053)
2.29ct - 9x7mm (PA2052)
2.05ct - 8mm (PA2051)
3.26ct (PA2050)
15.42ct (PA2046)
0.55ct - 6x4mm (PA2035)
1.55ct (PA2030)
1.07ct (PA2029)
1.18ct - 8x6mm (PA2027)
1.15ct - 8x6mm (PA2025)