Andradite and Jade Physical Properties
Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.70-4.10
2.90-3.38
Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
Gemstones of the world (2001), Difficult, Splintery
Cleavage
none
1 or 2,2 prismatic.
Mohs Hardness
6.5-7
6-7
Chemical Composition
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6
Andradite and Jade Chemical Formula
While comparing Andradite and Jade 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 Andradite and Jade chemical formula.
- Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Jade- Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6
Andradite and Jade Specific Gravity
Another important criteria for qualitative analysis of gemstones is Andradite and Jade Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andradite and Jade Optical Properties during the identification of gemstone. Specific gravity of Andradite is 2.90-3.38 whereas that of Jade is 2.90-3.38.
