Realgar and Turquoise Physical Properties

Realgar

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

3.562.30-2.90

1 7.18

1.5 Fracture

(e.g. graphite).

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

{010} Good

Good to perfect_usually N/A

1.7 Mohs Hardness

Not Available5-6

2 10

1.8 Chemical Composition

AsSMichael OâDonoghue , Gems, Sixth Edition (2006)

CuAl₆(PO₄)₄(OH)₈ • 4H₂O

Realgar and Turquoise Chemical Formula

While comparing Realgar 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 Realgar and Turquoise chemical formula.

Chemical formula of Realgar- AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Turquoise- CuAl₆(PO₄)₄(OH)₈ • 4H₂O

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Realgar and Turquoise Specific Gravity

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