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 |
2.89ct - 9mm (AQ3433)
12.65ct (AQ3403)
5.01ct - 8mm (ZI0802)
5.89ct (ZI0800)
17.53ct - Pair (ZI0799)
10.94ct (ZI0798)
76.50ct (PA1510)
3.22ct - 8mm (BS0265)
3.03ct - 7mm (BS0264)
3.06ct (BS0262)
5.03ct - 10x8mm (BS0261)
2.76ct - 9x7mm (BS0258)
15.68ct (TN0745)
7.49ct - 11x9mm (ZI0788)
9.91ct (ZI0779)
7.26ct (ZI0776)
4.67ct - 10x8mm (ZI0748)
6.12ct (ZI0744)
5.31ct - 10x8mm (ZI0740)
5.15ct (ZI0735)
3.86ct (ZI0725)
21.89ct (ZI0715)
9.37ct (ZI0714)
9.16ct - 11x9mm (ZI0712)