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 |
4.01ct - 8mm (J1-129)
4.01ct - 8mm (J1-130)
5.01ct - 11x9mm (J1-80)
5.02ct (J1-26)
10.24ct (JA-23)
4.02ct (B25-25)
4.04ct - 10x8mm (B25-24)
1.15ct - 7x5mm (SB174-03)
3.01ct - 10x8mm (NA53-52)
4.29ct - 10x8mm (NA53-51)
5.02ct - 11x9mm (NA53-30)
10.04ct - Pair (NA53-20)
10.06ct - 11x9mm Pair (NA53-17)
10.07ct - Pair (NK40)
3.70ct (ND-09)
7.04ct (NE-12)
1.92ct - 9x7mm (SLCR-03)
5.16ct - 11x9mm (SA44-40)
7.10ct (SA44-06)
5.01ct (SA71-35G)
10.20ct (SA23-14)
3.49ct (E32-32)
4.01ct - 10x8mm (MA4-32)
5.00ct (MB8-03)