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 |
5.04ct - 11x9mm (D6-33)
5.06ct - 10x8mm (D6-06)
4.01ct (D4-09)
6.21ct (D8-26)
3.01ct (G47-02)
12.39ct - 15x13mm (D10-02)
3.03ct - 9x7mm (B43-54)
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)
5.03ct (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)