Turquoise and Wulfenite Physical Properties

Turquoise

Wulfenite

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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

2.30-2.906.50-7.00

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Irregular, Brittle, Conchoidal

1.6 Cleavage

Good to perfect_usually N/A

On {011}, distinct; on {001}, {013}, indistinct

1.7 Mohs Hardness

5-63

2 10

1.8 Chemical Composition

CuAl₆(PO₄)₄(OH)₈ • 4H₂O

PbMoO 4Walter Schumann , Gemstones of the world (2001)

Turquoise and Wulfenite Chemical Formula

While comparing Turquoise and Wulfenite 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 Wulfenite chemical formula.

Chemical formula of Turquoise- CuAl₆(PO₄)₄(OH)₈ • 4H₂O
Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)

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Turquoise and Wulfenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Turquoise and Wulfenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Turquoise and Wulfenite Optical Properties during the identification of gemstone. Specific gravity of Turquoise is 6.50-7.00 whereas that of Wulfenite is 6.50-7.00.