Turquoise and Hardystonite Physical Properties

Turquoise

Hardystonite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.30-2.903.396-3.443

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Brittle, Metallic

1.6 Cleavage

Good to perfect_usually N/A

[001] good, [100] and [110] fair

1.7 Mohs Hardness

5-63-4

2 10

1.8 Chemical Composition

CuAl₆(PO₄)₄(OH)₈ • 4H₂O

Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

Turquoise and Hardystonite Chemical Formula

While comparing Turquoise and Hardystonite 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 Hardystonite chemical formula.

Chemical formula of Turquoise- CuAl₆(PO₄)₄(OH)₈ • 4H₂O
Chemical formula of Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

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Turquoise and Hardystonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Turquoise and Hardystonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Turquoise and Hardystonite Optical Properties during the identification of gemstone. Specific gravity of Turquoise is 3.396-3.443 whereas that of Hardystonite is 3.396-3.443.