Sardonyx and Turquoise Physical Properties

Sardonyx

Turquoise

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.702.30-2.90

1 7.18

1.5 Fracture

Not Available

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Not Available

Good to perfect_usually N/A

1.7 Mohs Hardness

6.5-75-6

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

CuAl₆(PO₄)₄(OH)₈ • 4H₂O

Sardonyx and Turquoise Chemical Formula

While comparing Sardonyx 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 Sardonyx and Turquoise chemical formula.

Chemical formula of Sardonyx- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Turquoise- CuAl₆(PO₄)₄(OH)₈ • 4H₂O

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Sardonyx and Turquoise Specific Gravity

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