16.10.03: Labradorite
- Page ID
- 4290
Labradorite | |
---|---|
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 |
Figure \(\PageIndex{1}\): Labradorite
Microscopic image of labradorite taken at 45x magnification (ilmenite inclusions):
Figure \(\PageIndex{2}\)