16.6.1.4: Carnelian
- Page ID
- 4108
Carnelian | |
---|---|
Chemical composition | Silicon dioxide SiO2 |
Crystal system | Trigonal |
Habit | Aggregate |
Hardness | 6.5 - 7 |
Refractive index | ± 1.54 |
Specific gravity | 2.55 - 2.70 |
Lustre | Vitreous |
Figure \(\PageIndex{1}\): Carnelian cabochon