Sapphire and Aquamarine Physical Properties

Sapphire

Aquamarine

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.032.66-2.80

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Not Available

1.6 Cleavage

None, but may exhibit parting

3,1 basal

1.7 Mohs Hardness

97.5-8

2 10

1.8 Chemical Composition

Al ₂ O ₃

Be₃Al₂SiO₆

Sapphire and Aquamarine Chemical Formula

While comparing Sapphire and Aquamarine 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 Sapphire and Aquamarine chemical formula.

Chemical formula of Sapphire- Al ₂ O ₃
Chemical formula of Aquamarine- Be₃Al₂SiO₆

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Sapphire and Aquamarine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Aquamarine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Aquamarine Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 2.66-2.80 whereas that of Aquamarine is 2.66-2.80.