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Sapphire and Turquoise Physical Properties


Turquoise and Sapphire Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
insoluble   
Soluble   

Durability
Not Available   
Not Available   

Specific Gravity
3.95-4.03   
2.30-2.90   

Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)   
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle   

Cleavage
None, but may exhibit parting   
Good to perfect_usually N/A   

Mohs Hardness
9   
5-6   

Chemical Composition
Al 2 O 3   
CuAl6(PO4)4(OH)8 • 4H2O   

Optical Properties >>
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Sapphire and Turquoise Chemical Formula

While comparing Sapphire and Turquoise 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 Sapphire and Turquoise chemical formula.

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Sapphire and Turquoise Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Turquoise Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Turquoise Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 2.30-2.90 whereas that of Turquoise is 2.30-2.90.

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