Jade and Poudretteite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.38
2.51-2.53
Fracture
Gemstones of the world (2001), Difficult, Splintery
Conchoidal, Splintery
Cleavage
1 or 2,2 prismatic.
None
Chemical Composition
Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6
KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
Jade and Poudretteite Chemical Formula
While comparing Jade and Poudretteite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Jade and Poudretteite chemical formula.
- Chemical formula of Jade- Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6
- Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
Jade and Poudretteite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Jade and Poudretteite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jade and Poudretteite Optical Properties during the identification of gemstone. Specific gravity of Jade is 2.51-2.53 whereas that of Poudretteite is 2.51-2.53.