Mineral | Corrundum |
---|---|
Chemistry | Al2O3 |
Color | Light - Deep Blue |
Refractive Index | 1.762 - 1.770 |
Birefringence | 0.008 - 0.010 |
Specific Gravity | 4.00 |
Mohs Hardness | 9.0 |
8.05ct - 11mm (BS0037)
0.89ct - 7x5mm (PA0883)
0.80ct - 8x6mm (PA0841)
0.33ct (PA0839)
0.39ct - 6x4mm (PA0834)
1.83ct (PA0827)
0.58ct (PA0823)
0.57ct - 6x4mm (PA0785)
2.84ct (PA0775)
1.46ct (PA0772)
24.06ct (AQ1320)
12.46ct - 12mm (TB0141)
81.26ct (AQ0930)
18.04ct (PA0299)
3.45ct (TB0070)
11.91ct - 14x12mm (TG0417)
70.95ct (AQ0666)
3.84ct (AQ0598)
57.86ct (TB0052)
111.67ct (TB0051)
75.12ct (TB0050)
33.63ct (TB0029)
21.05ct - 14mm (TB0020)
13.47ct (AQ0221)