Jade and Andalusite Physical Properties
Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.38
3.05-3.21
Fracture
Gemstones of the world (2001), Difficult, Splintery
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
Cleavage
1 or 2,2 prismatic.
Good on {110}, poor on {100}
Mohs Hardness
6-7
7.5
Chemical Composition
Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Jade and Andalusite Chemical Formula
While comparing Jade and Andalusite 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 Andalusite chemical formula.
- Chemical formula of Jade- Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6
- Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Jade and Andalusite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Jade and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jade and Andalusite Optical Properties during the identification of gemstone. Specific gravity of Jade is 3.05-3.21 whereas that of Andalusite is 3.05-3.21.
