Foitite and Jade Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.17
  
2.90-3.38
  
Fracture
Handbook of mineralogy (2001)
  
Gemstones of the world (2001), Difficult, Splintery
  
Cleavage
None
  
1 or 2,2 prismatic.
  
Mohs Hardness
7
  
6-7
  
Chemical Composition
Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
  
Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6
  
Foitite and Jade Chemical Formula
While comparing Foitite 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 Foitite and Jade chemical formula.
- Chemical formula of Foitite- Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Jade- Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6
Foitite and Jade Specific Gravity
Another important criteria for qualitative analysis of gemstones is Foitite and Jade Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Foitite and Jade Optical Properties during the identification of gemstone. Specific gravity of Foitite is 2.90-3.38 whereas that of Jade is 2.90-3.38.