| Mineral | Spinel |
|---|---|
| Chemistry | MgAl2O4 |
| Color | Red, Pink, Blue, Grey |
| Refractive Index | 1.718 |
| Birefringence | none |
| Specific Gravity | 3.60 |
| Mohs Hardness | 8.0 |
6.09ct - 9mm Pair (SP0087)
5.29ct - 9x7mm Pair (SP0085)
7.46ct - Pair (SP0081)
5.83ct (SP0077)
6.04ct - 12x10mm (SP0060)
5.38ct (SP0058)
6.84ct (SP0057)
3.18ct - 10x8mm (SP0049)