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Turquoise
Turquoise

Sard
Sard



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Turquoise
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Sard

Turquoise and Sard Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
Soluble
-
2.30-2.90
Conchoidal
Good to perfect_usually N/A
5-6
CuAl6(PO4)4(OH)8 • 4H2O
 
-
-
-
2.58-2.63
Conchoidal
None
6.5-7
SiO 2Ulrich Henn and Claudio C.

Turquoise and Sard Chemical Formula

While comparing Turquoise and Sard 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 Sard chemical formula.

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Turquoise and Sard Specific Gravity

Another important criteria for qualitative analysis of gemstones is Turquoise and Sard Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Turquoise Vs Sard during the identification of gemstone. Specific gravity of Turquoise is whereas that of Sard is .