Jade and Willemite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.38
3.89-4.18
Fracture
Gemstones of the world (2001), Difficult, Splintery
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven
Cleavage
1 or 2,2 prismatic.
{0001}, {11 2 0} imperfect
Chemical Composition
Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6
Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Jade and Willemite Chemical Formula
While comparing Jade and Willemite 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 Willemite chemical formula.
- Chemical formula of Jade- Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6
- Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Jade and Willemite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Jade and Willemite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jade and Willemite Optical Properties during the identification of gemstone. Specific gravity of Jade is 3.89-4.18 whereas that of Willemite is 3.89-4.18.