16.10.03: Labradorite
- Page ID
- 4290
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| 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 \(\PageIndex{2}\)