Jadeite
From The Gemology Project
Jadeite | |
---|---|
Chemical composition | NaAl(SiO3)2 |
Crystal system | Monoclinic |
Habit | Polycrystalline |
Fracture | Flintery |
Hardness | 6.5 -7 |
Specific gravity | 3.30 - 3.37 |
Lustre | Greasy to vitreous |
Enhancements
Common enhancements to jadeite:
- Fracture filling - wax - conceal cracks and fractures
- Coatings - wax - to improve luster
- Staining - color improvement through dyes
- Bleaching - removes stains
- Polymer impregnation - improves luster and to stabilize piece after bleaching