Variscite and Turquoise Physical Properties

Variscite

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

2.42-2.58

2.30-2.90

1.5 Fracture

Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

[010] perfect

Good to perfect_usually N/A

1.7 Mohs Hardness

4-5

5-6

1.8 Chemical Composition

AlPO₄ · 2(H₂O)

CuAl₆(PO₄)₄(OH)₈ • 4H₂O

Variscite and Turquoise Chemical Formula

While comparing Variscite 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 Variscite and Turquoise chemical formula.

Chemical formula of Variscite- AlPO₄ · 2(H₂O)
Chemical formula of Turquoise- CuAl₆(PO₄)₄(OH)₈ • 4H₂O

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Variscite and Turquoise Specific Gravity

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