Turquoise and Andesine Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.30-2.90
  
2.65-2.69
  
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)
  
Cleavage
Good to perfect_usually N/A
  
Perfect on {001}, good on {010}
  
Mohs Hardness
5-6
  
6-6.5
  
Chemical Composition
CuAl6(PO4)4(OH)8 • 4H2O
  
(Na,Ca)Al1-2Si3-2O8
  
Turquoise and Andesine Chemical Formula
While comparing Turquoise and Andesine 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 Andesine chemical formula.
- Chemical formula of Turquoise- CuAl6(PO4)4(OH)8 • 4H2O
- Chemical formula of Andesine- (Na,Ca)Al1-2Si3-2O8
Turquoise and Andesine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Turquoise and Andesine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Turquoise and Andesine Optical Properties during the identification of gemstone. Specific gravity of Turquoise is 2.65-2.69 whereas that of Andesine is 2.65-2.69.