Sylvite and Turquoise Physical Properties

Sylvite

Turquoise

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

1.9932.30-2.90

1 7.18

1.5 Fracture

Uneven, Brittle

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Perfect on [100], [010], [001]

Good to perfect_usually N/A

1.7 Mohs Hardness

2.55-6

2 10

1.8 Chemical Composition

Not Available

CuAl₆(PO₄)₄(OH)₈ • 4H₂O

Sylvite and Turquoise Chemical Formula

While comparing Sylvite 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 Sylvite and Turquoise chemical formula.

Chemical formula of Turquoise- CuAl₆(PO₄)₄(OH)₈ • 4H₂O

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Sylvite and Turquoise Specific Gravity

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