Mineral | Corrundum |
---|---|
Chemistry | Al2O3 |
Color | Red - Vivid Red |
Refractive Index | 1.762 - 1.770 |
Birefringence | 0.008 - 0.010 |
Specific Gravity | 4.00 |
Mohs Hardness | 9.0 |
2.24ct (S7-69)
2.03ct (S7-45)
5.03ct (S18-31)
4.28ct - 10x8mm (S18-28)
5.13ct - 11x9mm (S18-23)
4.02ct (S18-15)
3.18ct (S18-13)
2.18ct (S6-32)
3.03ct (S6-20)
3.19ct (S6-18)
2.66ct (S6-07)
3.06ct (S9-43)
4.04ct (S9-41)
3.10ct (S9-39)
4.20ct (S9-29)
4.03ct (S9-25)
5.01ct - 11x9mm (S9-18)
5.02ct (S9-07)
2.04ct (GBB-05)
2.05ct (GBB-04)
2.04ct (SL05-19)
2.01ct (SB31402-13)
2.01ct (SB31402-07)
2.01ct (SB31402-06)