Ruby and Turquoise Physical Properties

Ruby

Turquoise

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.97-4.052.30-2.90

1 7.18

1.5 Fracture

Conchoidal

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

No true cleavage

Good to perfect_usually N/A

1.7 Mohs Hardness

95-6

2 10

1.8 Chemical Composition

Al ₂ O ₃

CuAl₆(PO₄)₄(OH)₈ • 4H₂O

Ruby and Turquoise Chemical Formula

While comparing Ruby 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 Ruby and Turquoise chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
Chemical formula of Turquoise- CuAl₆(PO₄)₄(OH)₈ • 4H₂O

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Ruby and Turquoise Specific Gravity

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