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 |
3.00ct - 9x7mm (B43-51)
3.03ct (B43-47)
3.02ct (B43-31)
3.02ct (B43-21)
3.01ct (B44-18)
3.01ct (B44-11)
3.01ct (B44-05)
4.02ct (J3-Y)
6.04ct (J2-54)
4.02ct (J1-43)
5.04ct (J1-98)
5.05ct (J3-34)
7.07ct (J2-50)
3.00ct - 10x8mm (N20N-18)
3.01ct (N20N-14)
3.06ct (N20N-03)
4.02ct - 8mm (J1-131)
4.01ct - 8mm (J1-129)
4.01ct - 8mm (J1-130)
4.04ct (J1-73)
4.06ct (J1-80)
5.02ct (J1-26)
4.02ct (B25-25)
4.04ct - 10x8mm (B25-24)