Difference between revisions of "Nephrite"
From The Gemology Project
Africanuck (talk | contribs) |
Nick Lombard (talk | contribs) (Added Enhancements) |
||
Line 1: | Line 1: | ||
{{nephrite}} | {{nephrite}} | ||
+ | ==Enhancements== | ||
+ | |||
+ | Common enhancements to nephrite: | ||
+ | |||
+ | * Fracture filling - wax - conceal cracks and fractures | ||
+ | * Coatings - wax - to improve luster |
Revision as of 13:50, 21 December 2007
Nephrite | |
---|---|
Chemical composition | Complex Ca Mg/Fe (calcium magnesium/iron) silicate |
Crystal system | Monoclinic |
Habit | Polycrystalline |
Fracture | Splintery |
Hardness | 6.5 |
Refractive index | ±1.62 |
Specific gravity | 2.90 - 3.20 |
Lustre | Greasy to vitreous |
Enhancements
Common enhancements to nephrite:
- Fracture filling - wax - conceal cracks and fractures
- Coatings - wax - to improve luster