Jade and Almandine Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.38
3.95-4.30
Fracture
Gemstones of the world (2001), Difficult, Splintery
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
1 or 2,2 prismatic.
none
Chemical Composition
Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Jade and Almandine Chemical Formula
While comparing Jade and Almandine 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 Almandine chemical formula.
- Chemical formula of Jade- Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6
- Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Jade and Almandine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Jade and Almandine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jade and Almandine Optical Properties during the identification of gemstone. Specific gravity of Jade is 3.95-4.30 whereas that of Almandine is 3.95-4.30.