Jade and Purpurite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.38
3.2-3.4
Fracture
Gemstones of the world (2001), Difficult, Splintery
Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle
Cleavage
1 or 2,2 prismatic.
[100] [001] perfect
Chemical Composition
Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Jade and Purpurite Chemical Formula
While comparing Jade and Purpurite 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 Purpurite chemical formula.
- Chemical formula of Jade- Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6
- Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Jade and Purpurite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Jade and Purpurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jade and Purpurite Optical Properties during the identification of gemstone. Specific gravity of Jade is 3.2-3.4 whereas that of Purpurite is 3.2-3.4.