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 |
2.74ct (PA1843)
30.23ct (AQ4712)
4.21ct - 10mm (PA1747)
54.00ct (PA1716)
61.61ct (PA1715)
7.32ct (PA1707)
42.21ct (PA1699)
90.27ct (PA1698)
48.45ct (PA1697)
43.16ct (PA1695)
120.08ct (PA1694)
66.13ct (PA1692)
83.88ct (PA1688)
2.30ct (PA1686)
0.65ct (PA1684)
1.09ct - 8x6mm (PA1682)
2.02ct (PA1680)
22.10ct (TB0229)
1.24ct - 7x5mm (SP0512)
1.72ct (SP0510)
0.90ct (SP0503)
0.92ct (SP0501)
1.72ct - 7x5mm Pair (SP0495)
0.84ct - 5mm (SP0494)