16.10.05: Spectrolite
- Page ID
- 4311
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Spectrolite | |
---|---|
Chemical composition | Plagioclase feldspar |
Crystal system | Triclinic |
Habit | Aggregates |
Hardness | 5-5.5 |
Optic nature | Biaxial + |
Refractive index | 1.559-1.570 |
Birefringence | 0.008-0.011 |
Dispersion | Low |
Specific gravity | 2.70 |
Lustre | Vitreous |