Jade and Nepheline Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.38
2.55-2.65
Fracture
Gemstones of the world (2001), Difficult, Splintery
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
1 or 2,2 prismatic.
[1010] Poor
Chemical Composition
Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Jade and Nepheline Chemical Formula
While comparing Jade and Nepheline 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 Nepheline chemical formula.
- Chemical formula of Jade- Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6
- Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Jade and Nepheline Specific Gravity
Another important criteria for qualitative analysis of gemstones is Jade and Nepheline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jade and Nepheline Optical Properties during the identification of gemstone. Specific gravity of Jade is 2.55-2.65 whereas that of Nepheline is 2.55-2.65.