Turquoise and Chrysoprase Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.30-2.90
  
2.58-2.64
  
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Gems, Sixth Edition (2006)
  
Cleavage
Good to perfect_usually N/A
  
None
  
Mohs Hardness
5-6
  
6.5-7
  
Chemical Composition
CuAl6(PO4)4(OH)8 • 4H2O
  
SiO2 (with a high level of nickel impurities )
  
Turquoise and Chrysoprase Chemical Formula
While comparing Turquoise and Chrysoprase 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 Turquoise and Chrysoprase chemical formula.
- Chemical formula of Turquoise- CuAl6(PO4)4(OH)8 • 4H2O
- Chemical formula of Chrysoprase- SiO2 (with a high level of nickel impurities )
Turquoise and Chrysoprase Specific Gravity
Another important criteria for qualitative analysis of gemstones is Turquoise and Chrysoprase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Turquoise and Chrysoprase Optical Properties during the identification of gemstone. Specific gravity of Turquoise is 2.58-2.64 whereas that of Chrysoprase is 2.58-2.64.