Sard and Tanzanite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Hard
  
Specific Gravity
2.58-2.63
  
3.35
  
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
  
Cleavage
Not Available
  
Perfect {010}, imperfect {100}
  
Mohs Hardness
6.5-7
  
6.5-7
  
Chemical Composition
SiO 2Ulrich Henn and Claudio C.
  
Ca2Al3(SiO4)3(OH)
  
Sard and Tanzanite Chemical Formula
While comparing Sard and Tanzanite 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 Sard and Tanzanite chemical formula.
- Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
- Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
Sard and Tanzanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sard and Tanzanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sard and Tanzanite Optical Properties during the identification of gemstone. Specific gravity of Sard is 3.35 whereas that of Tanzanite is 3.35.