Turquoise and Feldspar Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.30-2.90
  
2.56-2.75
  
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Uneven, Conchoidal, Uneven, Conchoidal, Gemstones of the world (2001)
  
Cleavage
Good to perfect_usually N/A
  
two or three
  
Mohs Hardness
5-6
  
6-6.5
  
Chemical Composition
CuAl6(PO4)4(OH)8 • 4H2O
  
Not Available
  
Turquoise and Feldspar Chemical Formula
While comparing Turquoise and Feldspar 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 Feldspar chemical formula.
- Chemical formula of Turquoise- CuAl6(PO4)4(OH)8 • 4H2O
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Turquoise and Feldspar Specific Gravity
Another important criteria for qualitative analysis of gemstones is Turquoise and Feldspar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Turquoise and Feldspar Optical Properties during the identification of gemstone. Specific gravity of Turquoise is 2.56-2.75 whereas that of Feldspar is 2.56-2.75.